Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

blow through

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Old Aug 28, 2009 | 04:41 PM
  #1  
91 camaro 383's Avatar
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From: South beloit, IL
Car: 91 Camaro LS1
Engine: LS1
Transmission: T56
Axle/Gears: 9" 4.11
blow through

im loooking to procharge my 383 stroker this year but i had it running on e85 with a 750 dp and i started doing research on the procharger and was wondering if someone could explain the whole blow thru concept to me and what needs to be done to convert a holley 750 dp over thanks
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Old Aug 31, 2009 | 12:26 PM
  #2  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
"Blow through" means the supercharger pressurizes the air and then "blows" the air "through" the carb. As opposed to a supercharger that "sucks" the air through the carb (like the typical Roots-type blower installation), then pressurizes the air/fuel mixture before going to the engine.

Googling "blow through carburetor modification" yielded plenty of links, including from Procharger themselves. Give that a try.
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Old Sep 1, 2009 | 07:48 AM
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Re: blow through

Go here for blowthrough carb modification and here for any blowthrough carb questions.
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