Modifying a Holley 650 to handle boost

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Jan 9, 2003 | 01:14 AM

unknown_host

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From: Medford, Oregon

Car: 1989 Iroc Z L98

Modifying a Holley 650 to handle boost

Hey i am not getting a lot of answers to my recent questions on the power adder boards, so lets hear it. How should I modify a Holley 650 double pumper to handle boost. So far I am taking the choke off, and well take it from there. Thanks.

Jan 9, 2003 | 08:16 AM

onebad82z

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From: Orange County,NY

Car: 1982 Z28

Engine: 355

Transmission: T56

Axle/Gears: 12 Bolt

I would think that you could get away with a carb enclosure like the ones available from Vortech and such companies..and tune(jets,PV,etc) accordingly and you will be fine.I am more of a juice user but someone here should know for sure.

Jan 9, 2003 | 01:22 PM

Jester

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From: Homestead, Fla

You'll need a box or bonnet. Nitrophyl floats. Block the PV. boost referenced AFPR. If you go with a bonnet you may or may not have to seal the throttle shafts too, people have varying experience with that.