72firebird
Active Member
- Joined
- May 18, 2004
I recently had my transmission built by a very well known 200r4 builder. I believe to my fullest that he did an awesome job. However when my car shifts into 4th it is pretty shuttery like if you tap the gas it shakes. It does this about 30% of the time. And then when you let out of the gas it'll shake until it downshifts. I'm not sure if it's the transmission for sure though because I installed a PT51, 42 lbs injectors, Walboro 340, and a 9x11 3000 l/u stall at the same time. Whenever it shakes I can normally hear the car kind of pop. I think it's running rich but I'm not exactley sure. The car pulls good through 1st and 2nd. So if anyone had some insite on whether it's the transmission or if I'm running rich it owuld be greatly appreciated. The chip I have was made for 23-24 psi and I'm running about a peak of 20 right now.