I currently have my b16a all torn appart ready to be shipped out to benson to get sleeves. Im wondering since the whole motor is appart and i might not have another chance to really work on it later (leaving for college in fall) i was wondering what upgrade to the head are really worth the money. I know u cna drop close to 2 grand in head upgrade and i dont really have that. Currently im runing portflow springs and plan on getting some Ti retainers, along with ITR cams. Should I upgrade the valves also and what benifit come with this and what about angle jobs and porting. Which one of these mods are really helpful on a FI car? My current goal is 450whp.

 

by changing my valves to a supertech valve, what is gained?

 

if you want to change the valves you can, but any valve work would be helpful. And combustion chamber work is good as well, plus it's not usally that exspensive.