There is a shop in New Jersey called Automotive Restorations. The owner is Steve Babinsky and he has cars that go out to Pebble Beach every year. I talked to him about cast iron welding a few years ago and he said you can't even buy a quality cast iron welding rod anymore. He has his own rods made up especially for him. The important thing when welding exhaust manifolds is to put them in a jig first before you start the repair process. (908) 236-6400 or
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