The booster rebuild is around 140. A little extra to paint it. My car has the factory exhaust manifolds. I had the engine rebuilt to specs recommended by Bob K. ( Mr. Six PAC) His cam, 10.5 -1 Forged pistons, h- beam rods, good valve job on factory heads, balance and blueprinted. Pro-Max did the carbs. (PO gave me the original AVS and manifold but he put the six-barrel on in 1978. So I left it for now. ) My engine showed 426 HP@ 5400rpm and 500 ft lbs TQ @ 2700rpm. Its a blast to drive. John
John in CT.