Hi all, I have a 1981 Vette automatic. Runs pretty good in general, but lacks punch at the low end. I don't have another 81 to compare against, but IMO doesn't have the oomph a muscle car should have . I other words, it doesn't burn rubber - but will chirp going into second....
Back story : I had a GM 350 replacement motor installed a couple years ago (the 290 HP variety). Should have a lot more oomph than the stock motor. After the installation, the mechanic said he "disconnected the computer". He also removed the plugs covering the mix screws and adjusted those by hand.
Honestly I don't know what he did with the ECM, it does pass Calif smog, and I assume it would not have passed if the ECM was not connected. There is one green plug that is disconnected on the passenger side of the carb, I have never been able to figure out where that should be plugged...
I would like to get your opinions on how to proceed to unleashing some decent low end....
Thanks in advance
Steve
Back story : I had a GM 350 replacement motor installed a couple years ago (the 290 HP variety). Should have a lot more oomph than the stock motor. After the installation, the mechanic said he "disconnected the computer". He also removed the plugs covering the mix screws and adjusted those by hand.
Honestly I don't know what he did with the ECM, it does pass Calif smog, and I assume it would not have passed if the ECM was not connected. There is one green plug that is disconnected on the passenger side of the carb, I have never been able to figure out where that should be plugged...
I would like to get your opinions on how to proceed to unleashing some decent low end....
Thanks in advance
Steve