FBO's black HEI ignition box

Still waiting for proof about MSD 'lies'. A statement from you proves nothing, because 90% of the time you are WRONG.
And on what page does Urich say use 1/2 of the idle vac for the PV?????????
He says this on p. 129 as a tuning example; 'If a 65 PV is in the carb & vac occasionally drops to 5" of Hg at idle or part throttle, install a 4.0 PV'.

Try this again. An MSD 12 amp mag does NOT produce 12 amp, primary or otherwise. The same can be said for the 20 and the 44.

Like I said, MSD uses a different method (not RMS) to measure its mag output. They did that for marketing. Nothing else.

I call that disingenuous at best. Really it’s lying.

I hate liars.