Need Cam advice on my 360 with Edelbrock Heads!!

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Dan

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I just purchased Edelbrock heads for my 360 in my '69 Dart.
Here is my basic combo so far:
Stock '78 360 Block
Edelbrock Heads
Edelbrock Performer RPM Intake
Edelbrock 1407 750cfm carb

Has anyone out there used the Performer RPM cam in an application like this?
I'm open to any other suggestions.
I'm hoping to get this car into the mid-13's

Thanks!!

Dan.
 
I don't know much about there shafts, but I would look into a Huges shaft with the duration that comploments where your cruise range is with the most lift you can squezzzze in.
Other cam companys would be Comp Cams or the Lunati voodoo line.
Your cars weight, tire size, rear ratio and what stall unit you have or intend to run is the best info you can give when asking a cam question.
 
Dan said:
I just purchased Edelbrock heads for my 360 in my '69 Dart.
Here is my basic combo so far:
Stock '78 360 Block
Edelbrock Heads
Edelbrock Performer RPM Intake
Edelbrock 1407 750cfm carb

Has anyone out there used the Performer RPM cam in an application like this?
I'm open to any other suggestions.
I'm hoping to get this car into the mid-13's

Thanks!!

Dan.
Click to expand...

Just kinda o/t, with a decent cam, depending on what converter/gearing you have...12s shouldn't be a problem. just my 2cents :toothy7:
 
The stock 78 360 is going to have low compression so you'll need to keep duration down.
 
Edelbrock rates their Performer RPM package at 392 HP. That is with a 10.5:1 compression 340. At this level, you should be able to get in the 13's easily. Your low compression may not yield the same results though.
 
With low compression (like below 8:1 if stock pistons were used) that engine will be easy to over cam. Plus, the general rule is "bad heads, big cam, good heads smaller cam" in street cars. I would stay on the mild side. The XE268 would be fine, but the 270H or something similar might be better. The XE cams have a fast rate of lift, but they also favor the exh in lift and duration..The edelbrock heads are already so much better in intake to exh port flow, that this reeally isnt as necessary with them.
 
The problem with the Edelbrock heads is the amount of port volume as listed at 170 ccs and the stock iron heads is 150 ccs which is a bunch and more and as the port volume goes up the efficentcy goes down and more so with the larger valves being 2.02 and 1.60 verses 1.88 and 1.60. Flow isn't everything and neither is port volume. The key is to match all the componets and then you'll have a engine that will get the job done. IMO you would have been better off with the stock heads and had some work done than to go to bigger runner heads and larger valves, and then try to match a cam to the bigger heads. As has been stated that you'll need to stay smaller with the camshaft on duration to help the heads work better otherwise I think you'll be backing up.
IMO why would you need a set of heads that are capable of 7000 + rpm's and a cam thats good to 5500 rpm's if you won't get the engine there, sounds like a waste of some parts to me. Or if you get a cam to work with the heads then streetability will go out the window and more compression will be needed to help the other parts work. Pretty much as already been stated previously.
 
I've seen dudes run the same Crane I'm running in my 318 (272/284) and get into the hi 12's. Well preped and exicuted (sp) is the key.
There stall and gears were high, but I don't think it was impossible to live with. Good traction and weight transfer as well.

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rumblefish360 said:
I've seen dudes run the same Crane I'm running in my 318 (272/284) and get into the hi 12's. Well preped and exicuted (sp) is the key.
There stall and gears were high, but I don't think it was impossible to live with. Good traction and weight transfer as well.
Click to expand...
Pffht!

I'm running that cam in my 360 and have gone into the low 12s. With iron heads and 3.91 gears.
 
Now theres one of the guys I was thinking off. Known to speak up when it counts! Thanks Mike! (LOL, Pffht like Bill the cat.)
Proof positive you don't need a big whoppin cam.
Perhaps Dan needs a link to your site?
 
I built a 340 a few years ago using eddies. I didnt know they were closed chamber style when i ordered them. Now you can get them both ways. I had 10.5 to1 340 so i took the pistons to the machine shop after i measured each one and set then down .010 in the hole. It gave me about 9-1 comp. I used a 557 mopar solid lift cam,adjustable rockers an old holly strip domitor intake 700 double pumper and a set of 1 3/4 hooker super comps headers. 28 tall tire 456 gear. 4400 stall converter. The car weights 3000lbs with me in it. It ran 11.92@108-110 all day long.Best part of it was it ran on 91 octan fuel. It was blast on the street to drive.
 
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