Alright, i pulled off my thermostat housing, and to my pleasure one of the bolt heads snapped off. So it was pretty gay, and i tried filing it down for better grip, but it snapped again. So i tried a crapload of liquid wrench, heat, and an easy out, but no success and it broke the easy out. Now since i got the 351w, with stock 2bbl, it'd be nice to upgrade it, but that costs a pretty penny. So would it be better to get my manifold machined to pull that bolt out and refinish it while they're at it, or look for a new or used one?