They're constructed for superior filtration and airflow performance
The needle and seat assemblies that are installed in Holley Performance carburetors can sufficiently control fuel pressure up to about 8 psi
Crank Pulley Spacer - Polished Billet Aluminum
Chev 305 - 350 Vortec V8 Engines Intake Manifold Gasket Set # ED7215
Holley Aluminum Tall Chev LS Engines LS3 Polished Rocker Covers # HO241-111 Rate_Engine They're constructed for superior filtrationHolley Aluminum Tall Chev LS Engines LS3 Polished Rocker Covers # HO241 111 Valve Covers, Tall Height, Cast Aluminum, Natural, Polished, Chevy, 4. 8, 5. 3, 5. 7, 6. 0, 6. 2, 7. 0L, Pair Valve Cover Mounting Style: Centerbolt Valve Cover Height: Tall Valve Cover Top Style: Plain Valve Cover Material: Cast aluminum Valve Cover Finish: Polished Baffled: Yes Breathers Included: No Gaskets Included: No Grommets Included: No Mounting Hardware Included: Yes