MSD - RPM Module Kits include five modules in 200 rpm increments. 5 in Barrel Spring -

5 in Barrel Spring - 0

Fitting - Adapter - 90 Degree - 3 AN Male to 1/4 in NPT Male - Aluminum - Black Anodized - Each

Breather - Signature Series - Push-In - Round - 1-1/4 in Hole - 3/8 in Hose Barb Fitting - Edelbrock Logo - Steel - Chrome - Each

Oil Filter Adapter - Sandwich - Bolt-On - 1/2 in NPT Female Inlet - 1/2 in NPT Female Outlet - 13/16-16 in Filter Thread - Small Block Chevy - Each

Fuel Pressure Regulator - 4 to 12 psi - In-Line - 10 AN O-Ring Inlet - Dual 8 AN O-Ring Outlets - 1/8 in NPT Port - Aluminum - Black Anodized - E85 / Gas / Methanol - Each

MSD - RPM Module Kits include five modules in 200 rpm increments. 5 in Barrel Spring -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.