before you do anything, get an oil pressure gauge and make sure the pump isn’t worn out/low oil pressure. If so, replace the cover and pump. after that… Block the exhaust gas cross over, rebuild and tune the Q-jet, recurve the distributor and set the initial with way more timing. How much depends on your location, elevation, temps, and fuel. Duals, 2.5” mufflers, tails can be 2.25 with little loss. The old school b1b intake is good, unless you want to keep the intake stock. 72 ditch the points. beyond that…in a heavy B-body, you need some 3.42s for the 9-3/8.
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