I just bought a set a couple of weeks ago. They fit a B engine A body perfectly- I wasted my $$ trying to make B engine headers work. The nickle chrome ones look nice and save about $200. I'm not worried about blueing- two reasons, 1- it's been dyno'd so the tune should be pretty close and 2- I like the bluing look. As far as the cost, they are well built and if there was that much margin someone else would be knocking them off. I've learned my lesson no more cheap headers.