Carb and intake suggestions

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mpd12150

mpd12150

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I have built a 408 for a 1969 Dart GT with cast Scat crank, forged Scat I-beams rods, and forged Icon pistons. I am running CNC220 aluminum heads that flow 306 at .600 with offset Hughes rocker arms. I am running a Lunati solid Flat cam, .251 intake .259 exhaust @.50 with 110 lobe separation, advertised duration of 278 intake 286 exhaust and advertised lift .608 and .625. I am running Doug's headers, 3000 stall convertor, 727 and 3.55 gear in a narrowed Ford 9 inch with mini tubs.

I had planned on running Edelbrock Pro-Flo4 injection system but have decided to go with a carb.

I am looking for some suggestions of carb, intake and ignition/distributor. I have visited with Thumper Carbs and am still doing my homework and looking for others thoughts.

Thank you in advance.
 
I'd run a Strip Domimator and whatever Dom tells you to run. You'll be much further ahead if you let him build you a carb than some off the shelf carb. Ignore the I bought such and such brand and just bolted it on and it's perfect.

Buy the custom carb. Cry once, pay once. In the end, his carbs fit like bespoke shoes and suits.
 
yellow rose said:
I'd run a Strip Domimator and whatever Dom tells you to run. You'll be much further ahead if you let him build you a carb than some off the shelf carb. Ignore the I bought such and such brand and just bolted it on and it's perfect.

Buy the custom carb. Cry once, pay once. In the end, his carbs fit like bespoke shoes and suits.
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I do agree and plan to pony up for the carb. Dom did not offer a suggestion on the intake so, that is more what I am looking for. I am likely going to use the MSD ready to run distributor for the ease and cleanliness, possibly the Holley system. Never used the Holley but looks like a nice system, although I do not know anything about them.
 
yellow rose said:
I'd run a Strip Domimator and whatever Dom tells you to run. You'll be much further ahead if you let him build you a carb than some off the shelf carb. Ignore the I bought such and such brand and just bolted it on and it's perfect.

Buy the custom carb. Cry once, pay once. In the end, his carbs fit like bespoke shoes and suits.
Click to expand...
I am kind of leaning towards a Victor 340 intake or a Super Victor but again, only person I know using a super victor is in a 13-1 408 mid 9s dart with gutted interior, back halved race car that he calls a street car.

My car is a true street car with full interior, narrowed rear with mini tubs and tubular ladder bar rear with QA1s and tubular coilover front with Vi-King coilovers, torsion bar delete and rack. While it does have a roll bar with swing out door bars, it really is a street car.
 
mpd12150 said:
I am kind of leaning towards a Victor 340 intake or a Super Victor but again, only person I know using a super victor is in a 13-1 408 mid 9s dart with gutted interior, back halved race car that he calls a street car.

My car is a true street car with full interior, narrowed rear with mini tubs and tubular ladder bar rear with QA1s and tubular coilover front with Vi-King coilovers, torsion bar delete and rack. While it does have a roll bar with swing out door bars, it really is a street car.
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Either one of those two is ok too.
 
I’m going against the grain here only because you said you are using 3.55 cogs. To that end, I would rather suggest a RPM and port it if you can.

But! I’m missing a little info.
What is your tire size and how heavy is your car?
 
rumblefish360 said:
I’m going against the grain here only because you said you are using 3.55 cogs. To that end, I would rather suggest a RPM and port it if you can.

But! I’m missing a little info.
What is your tire size and how heavy is your car?
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I am running a 325/50/15 Nitto drag radial, that computes to almost 28 inches. As for weight, it's a 69 Dart GT with full interior, I'm guessing around 3000 pounds with me, maybe a bit mor .
 
Actual weight may surprise you. I'd weigh it.
 
mpd12150 said:
I am kind of leaning towards a Victor 340 intake or a Super Victor but again, only person I know using a super victor is in a 13-1 408 mid 9s dart with gutted interior, back halved race car that he calls a street car.

My car is a true street car with full interior, narrowed rear with mini tubs and tubular ladder bar rear with QA1s and tubular coilover front with Vi-King coilovers, torsion bar delete and rack. While it does have a roll bar with swing out door bars, it really is a street car.
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What I think...
340 Vic 7/16-1/2 spacer.
750 carb with those gears.
950 with 4.30+ gears.
 
Good thinking. Do it with a full tank of gas! That there will be your max weight and that is something that is good to know. You can add up the gallons of gas and minus that weight on race day. Now, what you tell the converter company is up to you!
:lol:
 
rumblefish360 said:
Good thinking. Do it with a full tank of gas! That there will be your max weight and that is something that is good to know. You can add up the gallons of gas and minus that weight on race day. Now, what you tell the converter company is up to you!
:lol:
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My car is still in the process of being put back together after a nut and bolt rebuild. It has had nearly everything replaced that could be, short of the body as it was very rust free, having had the drops done before we purchased the car many years ago.

Chromoly tubular ladder bar rear as well as chromoly tubular independant front with rack steering. While I do realize weight is a big deal with respect to setting it up for performance, I really just want a realiable street car.

I bought this car nearly 20 years ago for my then 4 year old son. 2 years later, I bought another 69 Dart GT for my youngest son so both of my boys could have matching cars that fit their personalities. The car that I am building is my oldest son's car and is being built to honor him. July 4, 2015, he was taken from us violently. This has become my therapy over the past 4 years and as we reassemble the car, I just want it to be a reliable car that will hit cruise nights and a trip now and then down a track.

I appreciate everyone's suggestions.

20180405_170811.jpg


20180302_135604.jpg
 
Anyone have any insight on the Mopar Performance M1 for rectangular port heads?

I have an opportunity to pick this one up.

received_477656016378545.jpeg


received_2187272374655327.jpeg
 
yellow rose said:
I'd run a Strip Domimator and whatever Dom tells you to run. You'll be much further ahead if you let him build you a carb than some off the shelf carb. Ignore the I bought such and such brand and just bolted it on and it's perfect.

Buy the custom carb. Cry once, pay once. In the end, his carbs fit like bespoke shoes and suits.
Click to expand...
I am not familiar with the custom built carbs you mention. Also, who is this, "Dom" you mentioned. Could you elaborate a bit more. I am very interested.
Thanks
 
mpd12150 said:
Anyone have any insight on the Mopar Performance M1 for rectangular port heads?

I have an opportunity to pick this one up.

View attachment 1715360032

View attachment 1715360033
Click to expand...

The old M1-single plane, the standard for many years. It uses the TQ carb pad for of course, TQ usage! And while that is a plus on one hand, it is t the greatest opening for a Holley. The MP engines book tells you to use a Holley carb when you start to get fast with your car & this intake. The “Engines book” also tells you how to modify it for a Holley carb via dams on the intakes floor and where and how big.

It is otherwise an excellent intake. MP made there own copy cat of the Holley strip dom. Which is also an excellent unit.

If your looking for HP, that’s a good start.


harrisonm said:
I am not familiar with the custom built carbs you mention. Also, who is this, "Dom" you mentioned. Could you elaborate a bit more. I am very interested.
Thanks
Click to expand...
His name is Dominic and he can be found at Moparts. He does really nice work with the Holley carbs.
 
He has Thumper Carbs. Dominic is his name, as stated. He is also on Facebook.

His carbs are extremely nice stuff, billet, all custom built for your application.

He is on forabodiesonky as well, Thumperdart.
 
harrisonm said:
I am not familiar with the custom built carbs you mention. Also, who is this, "Dom" you mentioned. Could you elaborate a bit more. I am very interested.
Thanks
Click to expand...


MPD got it. Does a great guy. Always has the phone on and answers it. He will help you for as long as it takes. He will even help you on a carb that isn't his over the phone.

Another one of those guys you meet like Mike at B3 racing engines you can't say enough good things about.



Edit: Dom spends most of his time on FB these days. If you are FB hit him up there.
 
View attachment 1715359537[/QUOTE]

Is that the engine your putting in??..if so that looks like an Air Gap I'd stay with it and see what it runs..my duster with the 416 ran 11.02@121 with an Air Gap:D:D
 
stroked340 said:
View attachment 1715359537
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Is that the engine your putting in??..if so that looks like an Air Gap I'd stay with it and see what it runs..my duster with the 416 ran 11.02@121 with an Air Gap:D:D[/QUOTE]
That is a Chinese airgap that is gone now. I have an opportunity to pick up a MP M1 for rectangular port heads. I am gonna have Dominic with Thumper Carbs build my ca .

Just looking for input on the MP M1 picture .

received_477656016378545.jpeg
 
mpd12150 said:
Is that the engine your putting in??..if so that looks like an Air Gap I'd stay with it and see what it runs..my duster with the 416 ran 11.02@121 with an Air Gap:D:D
Click to expand...
That is a Chinese airgap that is gone now. I have an opportunity to pick up a MP M1 for rectangular port heads. I am gonna have Dominic with Thumper Carbs build my ca .

Just looking for input on the MP M1 picture .

View attachment 1715360182[/QUOTE]



I run that same intake except mine says Holley on it. That will work.

If you don't mind, can you show your car when it gets there, and then maybe do a thread about the tuning or whatever you have to do when you get it?

I know I hate doing that, but it may help some guys to make a better decision when spending a few more bucks for a carb.
 
A stroker is going to make plenty of tq down low.

I'd run an air gap or a victor 340. Put a 1" tapered spacer or open spacer on it. M1 would be the third choice.

The 3000 converter with 3.55 and 28" tall tire is going to work that converter hard down low. You'll find out soon if the converter is a good one or not. If it's a shelf unit, it may be not so good.

Carb, I'd run a true 950HP on it. Dom is very good doing carb work and tuning them up.
 
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