[SCOBRAC]

I got a fabulous digital timing light that works really well at kragen (kragen, schucks, checker) It was about $120. It allows you to set the idle off the built in tach. From there verify lead, about 8-12 degrees btc.. (FE)

From there use what you think you know about how your particular engine runs to dial in the distributor curve.. Follow the MSD guidelines for springs and opening rates. I went with a light spring (silver) and a med. spring (blue). I limited my total centrifigul advance to 20 or 21 degrees, getting all of it "in" by about 2600.. That gets you to 32-33 degrees total at 2600. You will want to check it at idle, 1600, 2200 and 2600. It should pretty much match the curves in the MSD guidelines.

The advance light allows you to check the various points along the way.. Dial in where you think you want the timing to be.. you won't see the light until you get close to the RPMs to about where they should be at a given point.

Take a drive.. Mostly it will "feel" right or it won't. If it's pinging at all dial it back a little or increase the spring rate to two blue springs.. If it isn't pinging perhaps try the lighter spring combo As light as these cars you may get away with the lighter springs.