I recently bought an 85 740Ti stick. It has a rouch idol to it and it will sometimes stall out while idoling. Today i got it registered. I was driving it around an it doesn't have a lot of power. It has all it can do to get about 60. And the needle on the stock boost guage hardly goes into the yellow. what is going on here. oh, i also unplugged the wired going into the censor on the big hose going from the turbo and the idol smothed out somewhat. whats going on, help.