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Thread: Using too much fuel

  1. #1
    6tee7 Guest

    Default Using too much fuel

    I have a boat with a stock 350 chev running a holley 1850-3 manual choke carb. Up unti it was tuned 2 weeks ago it was very economical. Now it is really thirsty.
    Starts easliy and runs smoothly but when you take off the exhaust emits dark clouds, not smoke more like unburnt fuel.

    Is there an easy fix for me? Is it just a matter of adjusting the idle mixtuer screws or do I have to adjust the floats?

    Thanks for your help in advance.

    Regards from Australia

  2. #2
    Join Date
    Dec 2009


    Quote Originally Posted by 6tee7 View Post
    Up until it was tuned 2 weeks ago it was very economical. Now it is really thirsty.
    Depends on what was done (or which parts were changed) during this tuning session?
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & MT 245/45R17 tires.

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