Rough Running 68 400
#1
Rough Running 68 400
I recently rebuilt my 68 Olds w/400. I replace the distributor ignition with an HEI, the stock intake with and Edelbrock performer 455 and the Q-jet with an Edelbrock 600 carb. I'm experiencing a surge in the engine at low RPM's. It almost feels like a miss, but goes away at higher RPM's. I've put new plug wires,plugs,fuel pump and filter, and even run a wire direct from the battery to the Distributor ( I thought maybe low voltage somehow). The HEI distrubotor is new, but it is an in-expensive aftermarket one. Could an ignition module cause the surge, or do they just fail altogether. Any suggestions will be greatly appreciated.
#3
Define "lower" and "higher" RPM.
Whether it's a "surge" or a "miss" it's highly unlikely.
Norm
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