im going to be sending a head out to be ported. cc'd, etc. having the company i send it to assemble the valvetrain. i know for sure i will be doing 1mm over exhaust valves, but what about intakes?? I will be shooting for 650whp B16A, GE sleeves, manley rods, wiseco pistons etc? any suggestions with intake valves????????

 

Talk to your porter,he will tell you what valves to use with his port design.

 

makes sense. anyone have any experience with this? what are people running for valve sizes?

 

anyone????