Drzhope89

i was wondering if anyone has done this already use their stock valve train and upgraded and got a difference without a tune i wana get skunk2 stage 1 cams is it going to damage anything im just usuing it for street is there any good in this or should i just leave the stock GSR cams for it another thing is i have Nippon racing pistons in the block with eagle rods but the head is stock is it worth to put the S2 cams or just leave the GSR cams??

B_Swapped93

They're basically ITR cams arguably a waste vs the tuner 2's... so you may as well get tuner 2's in which case you do need something like super-tech/BC or skunks own valvetrain, yes a proper tune is required.