Hello guys. I'm about ready for my top swap but plan on having some head work done first. They'll undergo a P&P job, SS valves, new seals, new locks, modified retainers, roller rockers, and upgraded springs to match the other mods. Where the question comes in is, is it worth it to upgrade from stock size intake valves to a 1.9 valve? How much difference does it make? Is it just help HP, or does it kill any KR too (hoping)?
Please give me what you got.
TIA,
Slim