Reply to "Engine dieseling"

As you probably know, Holley sells a bolt-on electric choke assembly that fits all 4bbl models (for an extra $37 or so) and only takes a single key-switched hot wire to actuate. But do NOT take the easy way out & hook it to the hot wire to the coil! Doing so will allow the choke to work just fine but will pull enough amperage to drop coil voltage & act as a rev-limiter, usually around 4500 rpms. This is one of the most common electrical screw-ups we see at tech sessions. This should fix your starting problem. The dieseling likely comes from the requirement for a very rich mixture to start an engine, and the rich mixture builds up carbon in the combustion chamber.