ok ive been told that going to 21 psi on pump **** gas in california might hurt hp levels due to over heating . i was wondering what could help me (other then alky kit or 100 octane -_-) keep engine temps down so i can boost my car and get the 21g and boost my car to 21psi =) ... i plan on getting the whole package from gruppe-s which is head gasket, fuel injectors, cams 264, cam gears, pe timing belt, apr head studs and i also wana get helix innercooler piping. *saving up forever for this -_-* I have helix dp cat onto blitz exaust and gfb blow off valves and works p2 =) thanx