TopTech that was my first thought when i read this too, but sh*t mate we are clutching at straws here with such limited info, i had an 87 for 6 years and 4 days and mate that bitch went like the clappers off the line. My LT1 on the other hand, nothing until about 3,000 or abit more, then you better be holding on cause if it hooks, youll fall out the back.... if it spins, and it usually does, well then the rice burner beside you knows your name is the lord.....