AFR Magnum Comp Cylinder Head - Assembled - 2.250/1.880 in Valves - 305 cc Intake - 117 cc Chamber - 1.625 in Springs - Big Block Chevy (Pair) RS00500303 Idle speed position screw and

Idle speed position screw and idle speed spring

Wrap Around

ideal for low to medium HP applications

up to 1000 HP depending on application

3 Inch SFI 16

AFR Magnum Comp Cylinder Head - Assembled - 2.250/1.880 in Valves - 305 cc Intake - 117 cc Chamber - 1.625 in Springs - Big Block Chevy (Pair) RS00500303 Idle speed position screw andProduct Description: Cylinder Head Magnum Comp Assembled 2. 250 1. 880 in Valves 305 cc Intake 117 cc Chamber 1. 625 in Springs Aluminum Big Block Chevy Pair Advanced FLOW engineering (aFe Power) is a premier designer and manufacturer of automotive performance upgrade systems and components. Current product lines include cold air intake systems, high performance direct fit and racing air filters, exhaust systems, intercoolers, turbochargers,