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1975-1978 Corvette 650CFM Holley Spreadbore Carburetor Emissions Compliant

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Brand Logo Holley
Item ID: 642-900
Availability: Ships Directly From Supplier
   Pending Manufacturer Availability
Fits Years:
  • 1975-1978
$899.99 This Item is Not Eligible for Promotional Discounts
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  • Description

1975-1978 650CFM Holley Spreadbore Carburetor Emissions Compliant

Improve performance and remain Emission Compliant! Replace your worn out Rochester Quadrajet with a new 1975-1978 650CFM Holley Spreadbore Performance Carburetor. This Holley carburetor is set up with an electric choke and vacuum secondaries and the spreadbore design is a direct fit on stock 1975-1978 Corvette intake manifolds designed for the Rochester Quadrajet carburetor. 

  • Gold Dichromate Finish
  • 1.375" Throttle Bore
  • Electric Choke
  • Viton And Ethanol Resistant Seals
  • Vacuum Controlled Secondaries
  • Internal Bronze Fuel Filter
  • Features All Original Emission Provisions

Note: May be adapted to earlier applications. Provisions for electric choke (12v) will be required for pre-1975 Corvettes originally equipped with divorced choke.

NOTE: Always purge fuel line by cranking engine before connecting to new carburetor or after any carburetor service.  Most carburetor service failures are due to immediate rust/dirt contamination caused by the high volume of fuel transfer during initial float bowl fill.  



Also known under these part numbers: (For reference only)

  • 0-9895
  • 090127002421
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