I ended up making a stock Mopar low deck electronic distributer work very well in my old pump gas Duster by shortening up the advance slots so it had right at 18 crankshaft degrees of mechanical advance, which is nine distributor degrees, all in by 1200 RPM. It would start well and idle at 850 RPM in gear with 16 degrees BTDC, a fairly big solid roller cam (260@.050 int. with 266@.050 on the exhaust lobes installed at 106 ILC) ground on a 108 LSA.
That car and motor made me very happy, made some money at the track and had a lot of fun with it on the street