Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

Rochester 17058266 (1978 - Pontiac W72 carb) - tuning

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BanditRich:
I've got a 78 TA with a modded out W72 similar to your setup but mine came with a 1607 Edelbrock carb when I bought it. It ran ok but not the way I knew it should with what was done to the  engine compared to my last one with the quadrajet.
So I got the correct  78 quadrajet rebuilt with Cliff's HP kit and it made a BIG difference. You will be very happy with your carb - and your car after Cliff sorts it out.  8)

pega_de:
The first one from 2010/11 what I bought from Carb Junkys looks great. But the 2nd one... I don't can trust them. Same number, same build year, but one more vacuum port on the front side.

My both Rochester are on the way to Cliff.

We will see what he say.

Cliff Ruggles:
Marco, I have your carburetors apart and have evaluated both of them.

Neither one is set up for what you are doing, too lean everyplace.  They also have multiple issues and they are not using high performance or even good quality parts.

One of them had two gaskets under the fuel inlet seat (they left one in place by mistake and it was leaking.  There were two decent size holes in the float on that one as well like someone pushed a screwdriver down thru it.

The accl pump on the second carb was stuck tight in the pump bore and it had the tiny .110" fuel inlet seat.

I can get both of them up to par for what you are doing and have them ready by the end of the week. 

Just let me know what you want me to do.

Best to reply to:

cliffshp@embarqmail.com in addition to PM here because I check that account several times a day.....tks....Cliff

pega_de:
you got a PM  ;)

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