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Old 05-19-2007, 01:35 PM
Chevota1974 Chevota1974 is offline
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MSD Street Fire HEI trouble

I just bought a new MSD Street Fire HEI distributor for my mild 350 SBC. It's running perfect under 3500 rpm. When the engine is under a load, over 3500 rpm, it's missing a lot. It was running fine with a stock GM HEI that I had on it. The GM HEI was my brother's so I had to give it back to him.

Any ideas on what might be causing this? It's not fuel problems because it was running fine before.
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