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To recap on this, I ended up finding the correct part number for a 4bbl small block choke and then referenced that to a number that was supplied via parts places. CV164 which is then superseded by CV174 is the correct choke linkage when using a Thermoquad on a small block. I have seen the...

Very nice! That seems like a damn good idea, however this one was plenty long for my application. I do believe a re-bend with proper settings in mind will yield the results you need.

^ That right there is a very informative and interesting read for anyone! I will have to give that a going over once I am back with the car and adjust everything to how it says. Cause I feel like the choke may be completely dickered! lol

http://www.chevelles.com/techref/Adjusting_Automatic_Chokes.htm

Oh really? I have no idea. Is it like a screw adjustment? or something?

If you manually set the choke Via your hand it will properly pull up on the secondary lockout tab. When the choke worked properly it did keep the secondaries offline until the choke heater allowed enough movement to allow secondary lockout to be disengaged. I am not with the car for another 2...

Yes, the 12v assist is hooked up. Last I checked it had 12v with the key on, but I haven't checked recently. Yes, the choke plate swings free on the carb. Simple test would be to pull the choke out of the manifold, energize the coil and see if it retracts? I do recall watching videos and...

Hi there all! Back story; 1988 smogger 318, ESA/ELB deleted and am running a new kit to convert back to conventional electronic ignition as well as a Edelbrock Performer and 850 Thermoquad (non feedback) carburetor. Rest of the engine is bone-stock. Problem; The engine was obviously...

So today I took apart and cleaned my Thermoquad, the idle passageway on the passenger side was pretty gummed up so i soaked the carb over night in pieces in a tub. However, after getting it back on tonight and without resetting the idle screws (it was dark and I needed to drive it immediatey...

1988 5th Avenue came stock with the 3spd tourquflite and 2.22/2,23 7.25. Even with the stock 120-140hp 318, above 75mph is where you can really feel the power. Too bad you lose power at about 80mph! LMAO

My car has 2.23's in it :( how lame lol.

The greatest attest to Holley's is the 4160 I have on a small block ford that hasn't seen ANY road time in 11 years. It gets started, idled and revved maybe a few times a year if its lucky. When its going in to hibernation for the long haul I always treat what fuel will be left in the carb and...

So like 23 different carburetors all have the same crappy-crap going on? I am by no means an expert either, but it does seem an underlying issue is there as well?

Good info in here. Thanks guys. :)

It would appear that way, hmm. Well I had to mount it on the next ones back to clear the 4bbl Thermoquad, as its a wide bastard. Hmm, ****. This is a game changer. I am unsure if it really changes the geometry, it still just pushes the rod down to the tranny, if anything moving it back may...

I do not understand why you are getting offended or feel like I am not comprehending you, I am not saying "You're wrong" "I will make it work my own way.. blah blah". I am simply trying to understand the system, if I went through life just taking peoples word on things and never inquiring deeper...

From what I have just read a 25kmh 1-2 shift and 35kmh 2-3 shift is entirely normal under light acceleration, however this is entirely too low and drops the engine to roughly 1500rpm where it makes dick all for power. So basically I want that rod to be as long as I can more-or-less make...

It is shifted in to third by about 40km//h, and then lockup at 60km/h.

HUH interesting. Never knew that it would work that way. Hear me out though, I am not saying the rod doesn't need to be righted, so dont think that. The rod, from idle, moves with the throttle the whole way through its movement as it would have in 2bbl form. The KD moves directly with the...

I appreciate your knowledge and willingness to help me AJ :D! This is a (more-or-less) bone stock 88 5th avenue! LOL How much full load WOT do you think it sees? ;) It's either in D and has real slow gettup-and-go (due to shift points being sooooo goddamn low) or I am shifting 1-2-3 on the...

It is not the price of the timing chain that is the issue ;) it is the price tags of all other things you remove in the process that should also be replaced! LOL Also of course, the time to complete said job. It has a rock steady timing mark, so I would assume it hasn't much if any play...

Those pictures of the bowls and what not are pre rebuild 1.5 years ago. I got that carb from a shipping container full of carbs and intakes. So it likely was plucked full of fuel yes and left to sit. I would say no the timing chain has never been replaced, however now that I think of it.. the...

I checked them 1.5 years and 4500kms ago, at the time they were still intact and all was well. I do suppose the introduction to fuels again could have done some funk on them.. I will get you a picture of a few plugs ;) lol

The adjustments helped a huge amount! However, today the car was back to normal.. even as soon as I started it, there was an idle stumble. I am having a friend put together one of his spare Quadrajets with appropriate jetting and what not, so I will have that to try in a few weeks. The needle...

Oh I totally agree! This dizzy has a wild advance in it, so I have to run 8* or less in order for the total to remain within a reasonable area and not ping the engine to death. :burnout: It actually started, idled and free-revved best at around 15-17*. @Magiver, The carb is not always...

Phenolic section was not warped or broken anywhere, and yes the bottoms of those caps were in place and not broken off. The epoxy was still proper, and not leaking. As well, the seals at #49 were replaced when the carb was rebuilt. When the engine is running without the stumble at idle, it...

Yes, the carb was rebuilt before installation. Also all baselines regarding secondary air-door and the primaries metering rods were set-up prior to installation as well. It is not so much a stumble coming in to the primaries, it is a stumble because of the idle circuit I do believe. I am sorry...

Tonight I adjusted the carburetor with a vacuum guage, a tach and a timing light. I took probably 3 full turns out of my idle speed screw after adjusting the idle mixtures for best vacuum (19-20in/hg). As can be seen the choke was fully open, the timing is set to 8* BTDC, and the idle speed is...

No offence taken, I do not have much carburetor experience or I wouldn't have needed to have written this post now would I have? ;) The 850 is a vacuum secondary carburetor and very rarely (if ever) dips in to the secondary sides. The secondaries only open if you leave the gear selector in 1 or...