They came with stainless 1.94 intakes and 1.58 exhaust, dual springs for .550 lift cam. I cant remember the spring rates but they matched the Comps cam I decided to run perfect. It has Cam Dynamics 1.6 roller rockers, stock push rods, Ford replacement roller lifters and a Cloyes timing chain. Cam is installed straight up.

The F cam is a good all around cam. I think the Ford cams have mild ramp rates. That is why they match up to the so, so springs Ford Racing uses on their heads. I like the Comp Cams XE roller series better.

I ran Ford Racing stailnless headers. They fit, but I still cant use a socket and ratchet to change the plugs. I use the socket and a wrench. A couple are always a PIA.