F.A.S.T. Spark Advance Lockout - Mechanical/Vacuum - Aluminum - GM HEI Distributors R09P0033XL Pins fit most GM blocks

Pins fit most GM blocks and are sold in pairs

We combine our NASCAR-proven 8 D-Hole center with a lightweight

Installation Kit #RJS90906 available (sold separately)

The tip of the valve is protected by either the insertion of a steel tip or with a thermally sprayed coating

F.A.S.T. Spark Advance Lockout - Mechanical/Vacuum - Aluminum - GM HEI Distributors R09P0033XL Pins fit most GM blocksProduct Description: Spark Advance Lockout Mechanical Vacuum Aluminum GM HEI Distributors Sold Individually FAST is the leading developer of electronic fuel injection systems, EFI components, intake manifolds, tuning tools for high performance and street applications. For over 10 years, FAST has been recognized as the leading developer of advanced electronic fuel injection technology. Our engineers have ignited new sparks never before seen in the EFI