I was wondering if someone could give me a good estimate of horsepower, 350 four bolt main, bored to 355, 280H magnum cam 480 lift, vortec heads 64cc, keith black flat top pistons around 10 to 1 compression,.
I'd say with the right carb/intake and exhuast your could be makeing a little over 400HP.
One thing Vortec heads max out at about .470-.480 lift check your retianer to seal clearance befor you fire it.
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