I can't put 20 to 30 thousand in it, I'm looking , the 388 I 1st looked at I thought maybe I could tame it dn without spending a lot of money . The guy that built it is a good engine man , and today a guy told me about a 604 sb that he bought for a late model crate engine he ran it 3 or 4 times an is quitting racing he said it was about 400 hp , but I don't no nothing about that kind of motor. I just want something to pull hard to play with these boys up here with them big blocks around town. They giving me a hard time