trying to figure out what cam i want..

im doing a 355 rebuild on my 96 z28, its my daily driver, i want it to be as fast as possible. lol

i was set on a cc503 and Ive read of people getting sick of it and upgrading to a GM847. what as is needed for this cam? how much better is it? and what all will i have to do that i wouldn't have to do for the cc503?

 

Are you planning on having the heads ported, or will this be a cam-only build?

 

cam only, unless i can save up enough money top port them, but probably just cam only.

 

I have a gm847 cam and valve springs for sale if your interested.