Sierra International 18-5299 Ignitor Electronic Ignition Conversion Kit for Most Prestolite V-8 Distributors, Non-Retail Packaging Replaces Points and Condensers for True Solid State Ignition Fits: Most Prestolite V-8 Distributors. Use with Sierra 18-5403 Style Rotor. Uses standard coil, cap and rotor AND Easy to install, one-piece, 2-wire hook-up Accurate to within 1/4 Degree timing accuracy 0 to 6000 RPM range and can be used with Sierra's Flame Thrower Coils 18-5466 & 18-5469 Interchanges with GLM 72540 All Sierra parts qualify for and are covered under Sierra's Industry Leading Customer Satisfaction Warranty Before Ordering, Please Verify this is the Correct Part for your Application. For Assistance, Please Call Sierra's Tech Support at 1-877-663-8396