school me on dist

i would be willing to bet even your truck is going to want 12-16* initial timing, my 73 swinger is at 14*, 16 and i dont get any raise in idle and pick up a miss. For the total 30* is fine, but where it comes in at will be the trick. I would still try to get it as early as it will let you as thats where i picked up all my power and MPG.

if you can i would start with 14* initial, 30* total mechanical by 2500, then the 8.5R can on it set to 10". From there report back and let us know what its doing.

start at 10* adv on the timing and bump it up to 12*, re set idle and listen, go up to 14, then 16 and see what it does. If it likes 16 it may miss up top until you pull some total out. If it misses on slight down hill's you have to much vacuum adv.