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#1
08-30-2012, 10:15 AM
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I'll have to get a hold of the motor guy but it's a stock reground cam and compression is 10:1. A really great shot (Greer Performance) recommended that a 750 should suit it just fine. Don't need a double pumper or anything just a 750 and intake manifold that works with it.
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1971 SS454 Clone (build in progress) Jeff 
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#2
08-30-2012, 01:42 PM
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A 750 tuned right will suit the needs of 98% of all applications. Many of my friends with big inch LS-based engines run a 750. A few have tried bigger carbs - with lackluster results. One of the slower cars runs mid 10's on drag radials, through the mufflers.
I would think an Edelbrock performer RPM, Weiand Stealth, or something of the like will feed your engine plenty of air.
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1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi 1969 Malibu COPO L72/M20/12 bolt 3.31 posi 1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
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#3
08-30-2012, 04:31 PM
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Agree, a 750 or 770 (Holley's new carbs are 770's) would be good unless it's a very high reving 468 and used for mostly racing. Check the Holley and Edlebrock websites. They'll tell you what size carb based on the basics of the engine and how it's used, street, street/strip or strip only.
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