05-15-2011, 11:29 AM
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CC Member
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Join Date: Oct 2003
Location: Bainbridge Island,
WA
Cobra Make, Engine:
Posts: 709
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Not Ranked
Gotta agree with the 650 carb combo. I went thru two 850 Holleys before going to a 650 Barry Grant Mighty Demon on my 418W. I lost 15 hp on the dyno but gained back 19 lbs. of torque thru the mid range and greatly improved throttle response. Nice trade as far as I was concerned. My motor is very much like AL427SBF 427 with the exception of extensive ported and lightly polished Victor Jr. heads and Vic Jr intake on a flow bench by Neil Ruegsegger, Danville, CA. On an Eddy current dyno I put out 478 hp at the wheels with the 850 Holley.
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