Know that this will sound stupid, but when turning the distributor, which way advances the timing/ which retards? Elect/fuel are fine on truck, when it heats up...gets backfiring good. Pretty sure that the timing is retarded.


http://s971.photobucket.com/albums/ae197/jon63c10
1963 c-10 shortbed stepside 427 BBC T16 HD 3 speed
1963 c-10 shortbed fleetside 348 "w" 1st gen big block & powerglide