The Stovebolt Site Forums The Shop Area The HiPo Shop help with fine tuning a 1406

I just replaced my Holley 750 with the 1406 Edelbrock for better driveability and to keep from fouling plugs. When I started it up, it was still very rich, (smoked like a chimney) so I adjusted the carb where it did not smoke any more at idle. However when I revved it up, it billowed smoke again. Where do I go from here with my adjustments? Also, I'm thinking if I put new plugs in, that might help, but if not, I could just end up fouling the new ones. By the way, I like the way the truck runs now... well except for the embarrasing smoke.

What color is this smoke? If it is black it is excess fuel. If your previous carb was very rich the excess fuel may still be in the engine & exhaust system. I f you have A PCV sytem it can be pulling fumes out of the crankcase. Your plugs are probably carboned up but can be cleaned. I use one of the cheapy spark plug sand blasters. If you have compressed air available it can save buying new plugs when they get carboned up which is real easy with todays gas.