MSD RPM Module Kits include five modules in 200 rpm increments. 87461 1977-gmc-g25-esi5390847 Does not come with electronic

Does not come with electronic assist

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WILL NOT FIT FACTORY MANIFOLDS

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MSD RPM Module Kits include five modules in 200 rpm increments. 87461 1977-gmc-g25-esi5390847 Does not come with electronicEach 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. MSD RPM Module Kits include five modules in 200 rpm increments. 87461 Specifications: Brand MSD C. A. R. B. EO # D 40 29 Category Ignition Emission Code 1 Product Type RPM Modules Warning California Proposition 65 Warranty Manufacturer's Limited 1 Year Warranty Brand MSD C. A. R. B. EO # D 40 29 Category Ignition Emission Code 1