Quote Originally Posted by conekiller01 View Post
Not sure what kind of engine you have but simple math shows for a stock 99-04 5.3/4.8 cam....

Stock 1.7:
Intake: .457"
Exhaust: .466

1.85 rockers
Intake: .497"
Exhaust: .507"

Wow I must be pretty bored to figure this out lol
Thanks I was doing my math right just wanted to be sure so divide the lift by 1.7 then multiply by the new ratio