Hey guys quick question. I currently got my head built now looking for aggresive cams. Ill be running my 40r and also a 6766 so it will be big turbo. My question is are the gsc s2's good for 750-800 whp? Or also s3 or kelford 280's. I also heard the s3's need to have head modified to fit and work well withought pistons tapping valves. Idk how true this is? Any info would be great thanks

 

IDK but I have some Kelford 280's for sale for $400.

 

S2 have been pushed with that hp many of times, if you want to go all out i would get a set of S3

 

Aaron @ ER made a great video discussing this topic:

 

Perfect video thanks

 

you may as well go with some br272 or stm 670(i think thats the name) cams