440 A body header options

The blue car was mine.....Didn't have any issues with the box at all, just at the coupler which was close, but an easy fix..

What exactly are we looking at in your blue car picture dusterdrag? Are those MP heads? They look to have straight rather than angled plugs and what size tubes on the tti's?
Did you just need a dent in the tube for the coupler?
Thanks for sharing your experience here.[/QUOTE]

Your welcome. We are looking at how good they fit.
They are bulldog heads, exactly like Indy EZ's. The plugs are angled. Didn't have to dent anything at all. I wasn't going to dent $1000.00 coated headers, or I would have sent them back.
They are the 2" TTI's.I would buy them and use them again in a New York minute. I spent hours researching headers before I bought them. I knew about Mad Dog and all the others.
I didn't do any mod to the coupler (grinding or cutting it), it was the rubber retainer. I ground it down to the size of the coupler, and used a 1/4" hose clamp to hold it in place (you can see in picture). The 4 dog ears hit the header slightly, that solved the issue.
If I was to do it again, I would step up and buy the Flaming River coupler for $175.00.Much cleaner looking. I was at the end of the build, was tired of spending money, so I just used the stock coupler. It didn't hit at all, it had to do with the boot retainer. I intended to replace it "Some Day", but never did.
As mentioned before, I spent a lot of time on fitment. Cut 2 small holes on the pass side for easier plug access, but all the plugs were easy, except for #'s 4&6.
I also determined the car had been hit on the drivers side, because the splash panel (inner fender well) was replaced. They did a good job, but the compartment was a little tighter (frame squeezed), but they still fit awesome.
Close to everything, didn't hit anything.