I've gotten older over the years and either smarter or lazy, and remember what my dad told me when I was 12, work smarter , not harder. He would have looked at your problem,took off the ground cable, removed the header pipe,pulled off the carb and fuel line and filter, put a wet shop towel over the fuel pump,made sure nothing was under the manifold like wiring, rolled out the torch, cut the heads off of the offending bolts, cool off the bolts with a spray bottle of water, pulled the old manifold off, used a good set of vice grips and broke loose the rest of the bolts and screwed them out, problem solved.He worked as a mechanic all of his life , the type of man that could fix your car,make his own brews, fix your tv or restore your violin.
