Believe me, would not have done it if i knew there was loose gravel under the tires.
I'll make sure it's clean next time.

Have a 744 hl cam.
Work good with your convertor and 3.73's
Just need heads, int, and carb.
Do you have hedders or stock manifolds?
Still have the hedmans out of my old 68. Rusty, but solid. Should clean up fine.