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Originally Posted by 63chevy
i un hooked the choke simply i dont drive it when its really cold
ok so your saying bigger jets/smaller or main valve in carb??
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No, not bigger jets or power valve changes. Change the accelerator pump nozzles(shooters) to a larger size, and you may possibly also need to put on larger pump cams(the plastic cam that moves the accelerator pump arm when you open the throttle).
This is a Holley carb we are talking about? You said 830 cfm and that is a Holley size, so I just assumed.