El, point of clarification, his Dad
Quote:
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...increased the jet size to a 78 from a 74
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so he's going in the right direction.
I do agree you should make rather bold changes in the jet size until you get in the ball park. 4 is OK if your close, but a step up 10 sizes bigger (or smaller) is warranted when your not sure. From a 74 to an 84 (or vice versa), or a 78 to an 88 will show if your going in the right direction or not.