i am planning to get a backtop 4age engine on my ae101 and i will change the crank,rods and pistons into rough type = )....... and that i will chuck on a turbo to make great hp o.O can give me any type of good or great turbo model??? some 1 say rx 7,t3,t4 and gt30 which 1?? u have any better 1? thx u