GTP PWR

iTrader: (24)

I have my block torn down right now for the cam swap, as well as upgrade on the ignition adn electric waterpump.

I am using the gm847 with 1.7rr. what valve spring will be able to handle this ratio for one season. any help would well....help out. I have everything except for these.

let me know

slowmofo

iTrader: (6)

a 1.7? dang thats well over .600 lift. like .610/.632 ? Well Springs Im using with my 847 are only good to .610

Mabey you could give Crane Cams a call, they make the 847 and I tried finding something to handle that kind of lift, but no luck.