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#12123 08/12/2002 6:13 PM | Joined: Jul 2000 Posts: 962 Shop Shark | | Shop Shark Joined: Jul 2000 Posts: 962 | I noticed similar results with my 4bbl/235 setup. The plugs would be white and the tailpipes black, no matter what jetting or heat range I was using. Somebody mentioned that part-throttle/cruising mixture on a Holley 390 was controlled by the air bleeds. Is this true?
What brand and heat range plugs are you guys running in 235s/261s?
Chip
Preaching the Hot Rod Gospel according to the 4-stroke apostles:
Suck, Squish, Fire and Fumes
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