is there any headwork/cams for a b18c5? and do intake manifolds make that much a difference on a N\A import like they do muscle cars? any suggestions? and i have been hearing about 70mm throttle bodies as well, what do you think on that?

 

The b18c5 head is already pretty good right from honda..It already comes ported and polished,pretty aggressive camshafts,big intake manifold,big throttle body,valvetrain that can handle revs to 9000rpm..If you're going to do intake manifold swap look into the edelbrock victor-x manifold..