06-13-2012, 05:26 PM
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CC Member
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Join Date: Dec 2010
Location: Tempe,AZ-High Point,NC,
AZ
Cobra Make, Engine: Kirkham #684, 482FE, Mike Mccluskey build
Posts: 2,520
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Quote:
Originally Posted by chatterbox5333
I've used Holley's Ultra Double Pumper for the last year. Right out of the box it worked without any tuning. If I may ask, why are you looking at the HP series? I believe HP series are vacuum secondaries. When I was shopping around for my carb, all the mechanics and factory reps I spoke to suggested to get mechanical secondaries for a Cobra with a manuel transmission. They claimed that vacuum secondaries would not always open to WOT with the combination of a light car, a street/strip cam, and a manuel transmission. I am by no means a mechanic, but that seemed to be what everyone was telling me that was in the business. Plus, the Ultra Double Pumper has an electric choke....
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Ive seen the 950 HP Ultra in a mechanical secondary, its billet unlike the HP, I love the hard core gray look. |
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