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Reply to "Carb Mixture Screw Tuning"

I agree with both Danny and Gomer, but you'll be idling on the idle jets and all you've mentioned for sizes installed were the mains (which, at 135s sound small for a 2276 engine - I would think something closer to a 155 or 160 main jet for that).  

I usually just listen to the engine, but if you have a stable ignition system and a decent tach, then using Gomer's/Bob's method of watching idle speed should be just fine.

Remember, too, that any "pulling" you do under 60mph or 3K rpm or so will be on the idle jets, NOT the mains, which begin to come on around 3K - 3.2K (you should be able to feel it).  Getting your idle jets and mixture straight first is paramount, then mess with the main jets.

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