Re: 69Z stock cam
The best way for performance on a sb IMO is to jack the rear up and work under the trunk floor instead of radical cam's and big carbs. the 302 makes minimual power if the gearing is stock or even with the 4.10's. The cast iron exhaust manifolds have to go and the M20's and the 56's need to go in. Most Z/28's (302's)are tough to drive with M21's and a 3.73 gear. An off road cam and multiple carbs with a 3.73 or even a 4.10 may wear your clutch out in a weekend.
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