[Holeshot71]

Originally Posted by Sun Tuned

What Formulas said plus look close to see if carb is sitting too close to intake manifold and squashing pump arm wasting travel motion…. Look at it, seen that before on small chevies.

Ironically, I’ve seen that too on a small block Chevy. The pump was pressing against the heat shield below the carb. Made the pump delay squirting. It was surprising just a slightly thicker gasket fixed the problem.

Did you check for 12v to the dist? It’s possible the harness is wired for points and has a resistor wire for power? Maybe run a jumper wire straight from the battery. Also make sure the dist has a good path to ground.