FBO's black HEI ignition box

RB,
Post #25, your bulls**t claim : 'Big plug gap doesn't make power'. Another bull s**t claim: the HEI adv mech is overrated.
Even you should be able to understand that a 045 gap is bigger than 030. Testing & reported in Graham Bell's book, 4 stroke Performance Tuning, on a stock HEI equipped 350 Chev 6-7 more hp at 3500-4000 rpm range with the larger plug gap.
A test on a 351W with HEI ign & 040 plug gaps made 601 hp @ 7000 & with CD ign & 060 plug gaps made 613 HP @ 7000.


GM dists, both points & HEI have about the most adjustable centri adv mechanism on the planet. There are a large number of different centre plates as well as weights that allow for a huge range of timing curves.