HEI distributor

I was checking the timing on my small block Camaro yesterday and noticed that the timing doesn’t return to initial like it should. I set my initial timing at 14 degrees but then when I rev the engine and allow it fall back to idle, the timing light shows that the timing now is at

MSD makes a high-end, high-performance distributor for almost every modern engine still in use. Using a Chevy V8—arguably the most popular conversion engine in use today—as the example, we pulled the OEM distributor and installed an MSD unit with selectable vacuum advance to show you how it’s done. We swapped his particular engine into our Jeep