It turns out we have a crack (a hole really) in our exhaust manifold. I thought we would have some things fail or go wrong on our way to Florida but I did not forsee this happening!
We very much need an exhaust manifold for a Dodge 318 wide block motor. From what I gather, manifolds from Dodge trucks with a 318 1965-69 are interchangeable and will work for us. Anyone out there with a spare!? We've been talking to the dealers and garages around Florida and they recommend searching on ebay. It doesn't look promising.
I think the worst case scenario will be welding the (blank) out of it and hoping for the best!