Carburetor & Carburetor Spacers

Open base gaskets

-Brand:Holley
-Adapter Style: Individual venturi ports
-Height (in): 0.750 in.
-Hardware Included: Yes
-Gaskets Included: No
-Adapter Material: Billet aluminum
-Adapter Finish: Black anodized

These carburetor adapters from Holley make intake, carburetor, or throttle body changes a snap. They're available in a variety of bolt patterns to accommodate a large number of combinations.

Not all carb spacers are created equal! These are not just a cheap "fits all" parts. Our billet aluminum carburetor spacers are CNC machined to fit your factory Quadrajet manifold perfectly.

-Gain up to 17 horsepower over competing adapters
-1" tall
-4412 Holley/Rochester carburetor to stock Quadrajet intake

This set of aluminum intake adapter plates allows you to adapt a Rochester 2G 2 barrel or Holley 2300 series two barrel carburetor onto a 4 barrel intake manifold and adjust it forward or back on manifold. The carb spacer plates feature an open design to increase plenum volume which improves top end performance. When assembled the adapter will measure 1" tall.

Kit includes carb adapters, gaskets and all necessary hardware.

-Overall Thickness: .495"
-Bolt Hole Pattern: Holley/Demon/Ford: 5.125" x 3.500", -Rochester/Carter: 3.250 x 1.875
-Gasket(s) Included: Yes
-Hardware Included: Yes
-Material Type: Aluminum
-Finish: Natural
-Sold in Quantity: Each
Info
This aluminum carb adapter plate lets you adapt a large Holley 2300 series 2-barrel carburetor to a Rochester 2G 4-bolt 2-barrel intake manifold base. The adapter features an open plenum design and measures 1/2" thick. The carburetor adapter includes two gaskets and all necessary hardware to install.

-Adapts Holley 2300 (or equivalent Ford/Motorcraft) to Rochester -2G/Carter intake
-Smaller bolt pattern: 1-7/8" x 3-1/4"
-Larger bolt pattern: 3-1/2" x 5-1/8"
-Adapter is 1/2" thick
Note: With just a little work with a file, the adapter can also be used to adapt an intake manifold with a 2" x 3-3/4" bolt pattern to the Holley 2300/Ford/Motorcraft 2 barrel carburetor as well.

-Carburetor Barrels: 2
-Fuel Type: Gasoline
-Choke Type: No Choke
-Finish: Natural
-CFM: 500
-Fuel Inlet Type: Single
-Gasket(s) Included: Yes
-Sold in Quantity: Each
-Notes: Comes equipped with Holley #74 jets.
-Carburetor Flange Type: 2-Barrel 4-Bolt

This Jet Performance Products 500 CFM 2GC carb is modified specifically for circle track racing. This Rochester carb complies with the IMCA rules. They are arguably the best OEM production two barrel carburetor for use in circle track racing.

-.135 needle and seat to ensure adequate fuel and supply
-Idle, transition, and accelerator pumps are modified
-1-11/16" bore, 1-3/8 venturi
-Uses Holley jets (comes equipped with size #74)
-5/8-18" inverted flare fuel inlet
-2.008" x 3.695" mount pattern w/ .351" mount holes
-No choke mechanism
-Modified cluster to keep fuel curve correct throughout the RPM range

-Overall Thickness: .515"
-Bolt Hole Pattern: Intake: (Inside: 5.625" x 4.250", Outside: 5.625" x -5.125"), Carb: 2" x 3.688"
-Sold in Quantity: Each

Info
For use with 500 CFM rebuilt Rochester carburetor. This plate is 0.515" thick.

-Overall Diameter: 5.50"
-Material Type: Aluminum
-Finish: Natural
-Inside Diameter: 3.00"
-Overall Height: .70"
-Sold in Quantity: Each
-Notes: Allows use of a 4 BBL air cleaner on a 2 BBL carb w/ 3" O.D. top.

Info
-Allows you to use common 5-1/8" 4 bbl. air cleaner on your Rochester 2G 2 bbl. carburetor
-Billet aluminum
-Must be modified or used with a spacer on 2GC models

Material Type: Billet Aluminum
Finish: Anodized
Sold in Quantity: Each
Pressure Range (psi): 4-65
GTIN Code: 090127734971
Color: Black
Info
Holley Billet Fuel Pressure Regulators are just part of the complete line of fuel system products that Holley offers. This regulator is constructed from 6061-T6 billet aluminum for strength and durability. Adjustable from 4-65 psi and will handle both carbureted and EFI applications. So, if you are currently running a carbureted system but plan to upgrade to EFI in the future, this regulator will have you covered either way.
Features:

Adjustable from 4-65 psi for precise fuel pressure adjustments
Constructed of billet aluminum with a black anodized base and a clear anodized top for good looks
Used in systems with a return line back to the tank
(1) 3/8” NPT Inlet; (1) 3/8” NPT Outlet; and (1) 3/8” NPT Return Port
Includes fitting for manifold reference
Includes an 1/8 NPT gauge port
Boost Reference - 1:1