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Old 09-15-2003, 06:34 AM
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luvfordtrucks
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Holley jet sizes

perhaps my power valve suggestion was wrong..........i know i read sevral places that the number need only be one or two numbers below vacuum............perhaps this is for more strip than street???
also, there's the high flow power valves i see now, are those any better or over kill???
i put 69 jets in my 600, and a 5.5 power valve in ( it pulls 7.5 ) and it does die when the mixture screws are closed off, so i think its ok but i am having some idle irregularities..........has a bit of a stumble off idle which may be the accelerator but that doesnt explain why its less stable at idle than it was with a 750 on it.......any suggestions on what to look for???? these things are simple but man, some times....................lol...