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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
Featuring a boltin EFI downdraft injection system and complete serpentine drive kit
you can get 25 to 50 HP from these Proform main bodies
Get rid of those old fuel bowl floats and upgrade to one of these Speedmaster carburetor floats
it permits the direct bolt-on of any 4
Failure or poor performance from a coil can result in a misfire
Chevy GM LS1 1.7 Ratio Stainless Steel Roller Rocker Arm Set Stud Mount Featuring a boltin EFI downdraftSpeedmaster Stainless steel rollers are manufactured from heat treated stainless steel and alloy steel tip rollers. Speedmaster roller rockers are available in various ratios, so you are good to go. They feature greater strength and durability, capable of withstanding valve spring load up to 600lbs.
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