Guys, I want to take off the old, nasty exhaust manifolds on my 409. They are the stock type, dosen't look like they have ever been off. The bolts are rusted over from all these years of use. What do you recommend I do to get these off. Is heat going to be only option? I either want the manifolds bead blasted (I think thats what I need)or pick up a better set. I also need some tips on taking off the exhaust pipe at the flange, it to is rusted and nasty. What type of a heat source do I need? Thanks guys