ill look for my sheets, but i can tell you that the car dyno'd the exact same (238) with STOCK manifolds and a 3"dp, as when it was back on the dyno a few months later with headers. trust me, i hoped to see something better too. and im in no way saying zzp is the best tuners out there but im about 1 1/2 hours from them so i figure what the hell. im in no way trying to make enemies here, i just gave an opinion, spoke from MY PERSONAL experience. i should have known i was gonna get flamed from the header gods. i just think a rocker/ ic/ ~3.2 pulley with good timing is doable without paying out the ass for headers. if the OP wants to go with a cam, headers would probly be better, but not crucial at this point. again, IMO. what were people doing before ic's and headers were available for our cars? why is it now no one wants to put an intake on without headers? i dont understand
