Header question
Don't know about TTI headers and fit, but the issue for A body cars is two fold.
One is the engine is off set away from the drivers side. You'd think that would help, but it doesn't. The starter is there and even with a mini starter space is at a premium.
Second is the power steering gear. It's so damn big and so far to the rear, that it's almost impossible to get a decent header on that side.
If you are not married to power steering you can go to manual and buy a header that fits better and doesn't burn the 5&7 spark plug wires.