Setting correct Timing for truck 360

Gonna be something you will have to play with. The problem with stock stuff is when you get enough initial, you will have too much total. You need a way to limit mechanical advance, like weldin up the advance slots. With a truck pullin something you might start with 12-14 initial and see where total ends up. It's not uncommon for total plus vacuum to be in the 60 degree range on a stock low compression motor......BUT whether or not the engine will take it pullin heavy stuff will have to be seen.