Car troubles =[

[Sharaz508]

I have and 87 supra turbo which is runing like crap right now and i need some help. This is what happens when im driving ill get out of first then if i try and go a little faster and my car jerks and dont really go anywhere till i get boost witch is about 3000 RPM then it runs ok but when ever its under stress it just starts jerking its bin like this since i bought it. what could be my problem. i also just hallowed out my cat on the down pipe becausse it was clooged i also found out that my downpipe only has 2 of the 3 nuts and where it connects from the main cat it only has 1 bolt. is it because theres not enough back pressure or off timing i have no clue and i need help. What could it be. =[

PS Anyone on these forums live in Fall River, MA???