Bumped timing from 10* to 14* and the truck is much much happier. Still seems a little doggy from an initial stomp, but 35"s and 3.23s are bound to make me feel inadequate in the acceleration department. I know my dist adds 26*, at what I don't know. So at some point my total advance is 40*. Is that too much for an otherwise stock late 70s 440?