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Proform 67100C 650-800 CFM Holley Carburetor Main Body

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Specs
Material Type:
Aluminum
Sold in Quantity:
Each
Finish:
Natural
Gasket(s) Included:
Yes
Fuel Type:
Gasoline
MFG. Part #:
67100C
Carburetor Barrels:
4
Secondary Type:
Mechanical
Fuel Inlet Type:
Dual
Proform 67100C 650-800 CFM Holley Carburetor Main Body
Proform 67100C 650-800 CFM Holley Carburetor Main Body

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Proform 67100C 650-800 CFM Holley Carburetor Main Body

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What's in the Box

This direct replacement main body will turn your ho-hum Holley street carburetor into a true racing carb featuring adjustable screw-in air bleeds and performance down-leg boosters. Plus, airflow is improved by eliminating the air horn and choke assembly, which can translate into 25-50 more horsepower! Easy 30-minute swap-in, swap-out installation utilizing existing metering blocks, fuel bowls, and base plate. Involves only 14 screws. Instructions, high performance jet kit, and non-stick gaskets included.

  • Flows 750+ CFM
  • Adjustable screw-in air bleeds
  • High-performance down-leg boosters
  • Get maximum air flow with no air horn, choke tower, or choke control
  • Non-stick replacement gaskets
  • High-performance jet kit

Technical Note: Main body does not retain vacuum advance port in original metering block.

586-67100 Instructions (PDF)

Application

For use with Holley Double Pumpers (Mechanical Secondaries):

  • 650 CFM (#4777)
  • 700 CFM (#4778)
  • 750 CFM (#4779)
  • 800 CFM (#4780)

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Proform 67155 650-800 CFM Billet Carburetor Base Plate
                        

Upgrade or replace your Holley Double Pumper's cracked or warped throttle base plate with this billet aluminum unit from Proform. Solid billet construction is stronger and more durable than die cast aluminum. Also features torx-head throttle plate screws, an adjustable secondary airflow cam bracket, timed and full vacuum tubes for accessories/tuning, slip-link mechanical secondary linkage and power valve blowout protection.

For use with Holley Double Pumpers (Mechanical Secondaries):

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  • 700 CFM (#4778)
  • 750 CFM (#4779)
  • 800 CFM (#4780)
  • and Proform Carb Main Body 67100C (586-67100 at right)
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Wehrs Machine WM47 Carburetor Feet
                        Bolt to the base of your carburetor so you can work on it without damaging the throttle assembly.
  • 5/16”-18 threads
  • 1-1/2” tall
  • Set of 4 (nuts included)