Pull the spark plugs first to see if any look significantly different than the rest. That will tell you a lot as to which cylinder is causing the issue. If they look good, I would check the float level next.
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62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs
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