I am putting together a mild build for a spare using an HF Predator. The valve train is as follows:
Mod 2 cam, billet lifters, CM pushrods, 1.3:1 rockers, stainless valves, 26# springs, aluminium retainers w/ split keepers.
my question is, when I measure valve stack height, I measure seat pressure @ 17#.
Can you experts tell me if this is adequate? Do I need shims t get to 26#?
I will rev the crud out of this thing on an 1/8 mile dirt oval.
I am a Harley guy so any help would be appreciated.
Thanks
Mod 2 cam, billet lifters, CM pushrods, 1.3:1 rockers, stainless valves, 26# springs, aluminium retainers w/ split keepers.
my question is, when I measure valve stack height, I measure seat pressure @ 17#.
Can you experts tell me if this is adequate? Do I need shims t get to 26#?
I will rev the crud out of this thing on an 1/8 mile dirt oval.
I am a Harley guy so any help would be appreciated.
Thanks