Ok, here is what I did. I pulled the stock 17059263 carb off and replaced it with a 17056263 that I have that is in good condition. I opened it up first and set the float level to 5/16 per HO Racing specs in the "Supertuning the Quadrajet" article. I checked the jets and metering rods and recorded what they are. The jets are 70 and the primary rods are 42K. When I removed the original carb, I noticed that the bolts were loose. Since the car acted like it was lean, this was a good indication that it probable was. I bolted the 17056263 carb on after cleaning and blowing it out. The car now runs like it should. Burned rubber as long as I wanted to in 1st gear when stomping on it after taking off. Pulled all the way to redline without a hint of pinging or any flat spots. I am now going to take the top off the 17059263 and record the jets and metering rods. I am also going to set the float level to 5/16, factory spec is 17/32 which is much lower! It is clear now that the car was having some carburetor issues. I will get the carburetor sorted out and then want to play with the timing advance.
__________________
1970 Trans Am
1971 Trans Am
1974 Trans Am
1978 Y88 Trans Am W72/auto
1979 10th Anniversary Trans Am
1984 Trans Am
1996 Trans Am WS6
1999 30th Anniversary Trans Am
2001 10th anniversary Firehawk #104
|