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Originally Posted by mrmustang
Forget the freebie as it's worth as much as you have into it. I suggest a Holley 04777C 650cfm DB. I further suggest a Moroso 1:1 secondary linkage kit followed by some time on a chassis dyno to propery tune and jet it for your engine. When it comes to carbs bigger is not always better. Enough said.
Bill S.
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While the Holley double pumpers make great HP at the track and on the dyno., they really suck on the street because of their air bleeds and PVCR's. Without MAJOR mods., they run too rich. A 770 SA is a much better street carb. and with vac. secondaries, it's not too large and very easy to tune correctly. But, I only have 40 years tuning Holley's. Enough said!
