I'm thinking a valve job and a good port and polish skunk 2 intake manifold. I have a nice header sitting here. then instead of spending 2000 on a stroker kit cant i just take some b20 pistons and rods with the b18 crank or some kind of combination like that? Or just leave the bottom end alone. I had a stock ls with an itr trany in an eg turn 14.6 at 93. Im trying to just get into the 13s. can I do that with a stock lower end? Oh and by the way, I do not want to do anything with a turbo.