1/4 mile times

What track are you going to in Oct?

Look at the instructions and the bottom side of that advance weight plate. Those hooked pieces are the advance weights. The limiter is on the bottom side of that plate... NOT under the weights themself. MSD use a GM style advance system on most all their stuff.

Read the instructions and look at the distributor while you have it out. It will help a bunch.

I still think the hot switch and locking it out will be best, unless you make your own bushing.