The Opti-spark distributor is positioned on the front of the engine underneath the water pump, and works well in its designed environment--when it works. It isn't a matter of if your Opti-spark will ...

At GMHTP, we cater to all years of GM EFI muscle, and the LT1-powered GMs are no exception. Though today overshadowed by the much-adored LS1 and LS6, the LT1 can be made to run with many of the newer ...