I have a friend with a 71 Firebird with original 350 Pontiac block. He got the Heads ported out to make it a 355 and he has an Edelbrock intake. he would like to put a more aggressive Cam in it and make it Gear driven and we are having troubles finding the parts for a Pontiac Block. Does anyone know any good sites that sell Parts for Pontiac blocks? I have Checked Yearone.com and they don't seem to have Cam's for Pontiac Blocks I saw Olds, and Buick and Chevy, but not Pontiac..

 

Go Here

I personally would go with a Comp Cam.
Click Competition Cams Magnum Hydraulic Camshafts ( Just to get an idea) scroll through the pages and you will see cams for Pontiac blocks.

Just search around summit, you should find what you need there.