i had the same problem with my 39 plymouth coupe so i replaced the relay and i took the old one apart and the points were were way off from contacting probably because it came from china
for engine management i'm OK with but some of the stuff i think sucks especially when you half to go to the dealer to play with the computer with a enormous $bill !!
well every car show i have been at i will get a comment about my car witch they will say ( i'am glad you didn't put a chevy in it ) as for mark worman he is kool especially on the sema car a 1958 plymouth with the hellephant 1000 hp motor. MOPAR OR NO CAR!