Not Ranked
Glenn,
My engine has a Comp Cams Extreme Energy XE274HR cam. As I said it's a hydraulic roller lifter cam. .555/.565 lift with 274/282 duration. Pretty healthy cam for a streetable car.
The AFR 165 heads should be a good match for the 306. The hydraulic lifter cam and dual plane Performer RPM intake will limit your revs to about 6500 rpm. If you want to rev higher you will have to go to a solid lifter roller cam and a good single plane intake manifold like a Victor Jr.
I used a hydraulic roller to keep the maintenance low. Truth be told I'm beggining to wish I had gone the solid lifter route. I don't think the valve lash will have to be adjusted too often since I won't be putting on too many miles. Maybe it will be a project to make the switch some winter in the future.
Greg
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