Hmm interestingLocal dealer is seeing push rod failures lately. Anyone else hearing this?
800 seems to be the max. i would buy an s400 kit before the s300 kit for these trucks. you cant compare to them to the 16 and older with the amount of air they move.I just saw Wehrli is offering a s300 kit for l5ps now and are working on a cp3 swap as well. Supposedly they’re maxing out the hp4 at 7-800hp.