This 1" Phenolic adapter allows the Holley R4412 2BBL carb to be mounted on the Q-Jet manifold 4BBL manifold
wall chromemoly pushrod needs
These heat-treated washers reduce the chances of damaging cylinder head bosses and ensure equal torque readings
2" length with 5/8" female pilot
a Del West engineer can help guide you on the performance benefits to applying these coatings
MSD RPM Module Kit - 8100-8900 RPM - Odd Increments 53119119 This 1" Phenolic adapter allowsRPM Module Kits include five modules in 200 rpm increments. Each kit is within a 1, 000 rpm range. Each kit is within a 1,000 rpm range. For example, the PN 8745 is supplied with: 5,000, 5,200, 5,400, 5,600, 5,800 modules. Product Description: RPM Module Chip 8100 8900 RPM 200 RPM Increments Odd Kit Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge over the competition. The