Hi everyone.,, i wonder what is the original cam profile and lift of the R34 Gtr . Cause i am planing to change mine to a 260 and 9.15 lift cam. The most important thing is .. i dont wanna change the valve spring as i really hope to minimise in dismantaling the block. So , wat is the best profile cam and lift to go for without damaging to the standard engine....? or shall i say the best profile and lift the standard valve springs can take.,,,, thanks everyone..!! currently me looking for the pon cams from tomei.. of course i will want to go for something with higher lift if it permits me ..!!