Thermoquad........Ok AJ, WHAT NOW?

AJ,
You talk about 'ridiculously large amounts of idle timing' in post # 20. What specific number [ 10, 20...50? ] is ridiculously large????? Would 20* be in that category?

Many GM cars, stock from the factory, with tiny cams of less than 200* @ 050 duration idled at 24-26* of idle timing. My GTO idled with 26*, 6* initial [ static ] with 20* added via MVA. Chrys didn't take advantage of MVA....& missed the bus.

The correct/best idle timing for any engine is what delivers the smoothest/highest vacuum. That is going to depend on CR, cam specs, etc