Looks like power drops off early? I like the mid range but I want some top end too. Any chance you could dyno a VR w/ 268 cams and 268 chip?
does having the mk4 head gasket really make a big difference with the chip cause i recently bought a stage 2 chip for 262's online. i didn't know that i needed to inform you's about the head gasket still putting the car together so i have not installed the chip yet.
I'm running the regular file on 93 octane with the mk4 head gasket and experiencing some pinging issues at low rpm especially when hot. This doesn't really surprise me but I figured I would try it out. Apparently Jeff has a modified file on hand with less timing aimed at the mk4 gasket mod.
you might be ok with your current chip since the more lift/duration/overlap the cams have the more the static compression is lowered
As to get accurate numbers, that would involve swapping cams then and there on the dyno, we havent had that opurtunity. But on the first page there is a dyno comparison between our VR6 Cam file and a GIAC cam chip on the same car, the same daym, swapped on the dyno.