b16a head.
port&polished.
buddyclub spec III cams.
buddyclub retainers.
buddyclub valve springs.
skunk2 camgears.
hytech header

b18c1 block.
ctr pistons.

 

can be 68 to 70 mm tb with out problem.

 

type-r manifold with 68mm would be good for that setup.

 

i also have a 85mm bore i don't know if that makes a difference for the manifold

 

85mm ctr pistons. Sign me up!

 

ummm they dont make 85mm ctr (pct) pistons. only pistons in 85mm are aftermarket.

but if you do have a sleeved block with 85mm pistons then a cnc ported type-r manifold with 70mm throttle body.

 

I vote cnc ported ITR w/ tapered 70-68mm TB.

 

ctr pistons = ****

PerformerX manifold would kill on that thing with a good 68mm TB.

*edit* read your 85mm

I'd go with a victorX, or custom cut performerX manifold or a skunk2 pro series modded..

look into more custom manifolds to make serious power.. endyn 's new manifold would probably be the best bet , next to BMCrace's manifold.