DK4A distributors

[Bob Culver]

Cars with excessive advance run hot, contrary to the tales from days of Model Ts  run retarded with glowing manifolds. Adjusted for max power scatter may not make much performance difference but the crank will wince at the early shots, with avoidable roughness.
For anyone retaining manual advance, if only as an override, a light spring can eliminate lost motion.
Old lawnmower controls offer scope fro an override.