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Re: 1965 C20 fleet side longbed DD low budget build.
OK...fresh off the Summit website
Camshaft lift is .450 intake / .460 exhaust. Camshaft duration at 050 is 222 degrees intake and exhaust. Lobe centerline is 114 degrees. Normal engine manifold vacuum for the 350/290 HP engine is 10-12 in
I think the vacuum stated is low...this one had about 15-16" on idle
Joe
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