hmm well what are your plans for the car?
you want to go turbo? sc? nitrous?
and if you want to go turbo, are you planning to build up the motor or just leave it for a while?
heres what i suggest for diff. engines. of course this is just me and im a loser :P
B16A: eh.....i dont suggest this motor unless going build up and turbo. if you have it and dont want turbo, i suggest a Vortech SC.
B16B: mmmm, NA is the way to stay!
B18B: turbo! 13psi on STOCK internals!!!!!!!!!! very nice

but not too enjoyable if staying naturally aspirated.
B18C1: hmm, very fun engine.....NA or FI build up will most likely net you impressive gains with the correct mods.
B18C5: hmm....for the price, i suggest a B18C1 unless of course you have oodles to mod with. but this engine is so beautiful NA.
H22A: this thing is insane crazy.....no fun for hauling ass around turns. i do not suggest it

and then of course theres the crvtec and lsvtec stuff but.....hehe i dunno what you want from the motor.....
