Hey there
I want to build up a head for my b18b ls engine. I'm going to have it ported and polished, as well as new springs and retainers, and cams and gears. I'm going to eventually put the car on a bottle of nitrous. What i'm trying to figure out is do i need to upgrade the valves? If so, i havent found anywhere online that has performance or race valves for the b18b head. Also, if anyone out there has built up there LS engine, please email me with any info that would be of value. Thanx
-Devin