Holley Replaceable Air Bleed Drill - Size: 0.033 91609139 Molded flanges for added rigidity

Molded flanges for added rigidity and easy installation

Cast from high quality aluminumDerale has been the leader in performance cooling for decades

Single Groove

Ford PowerStroke 2003-08

1993-1997 Pontiac Firebird

Holley Replaceable Air Bleed Drill - Size: 0.033 91609139 Molded flanges for added rigidityHolley Replaceable Air Bleed 126 33 10 Drill Size 0. 033 10 Per Package 10 Per Package Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also