definitely find someone with the headers you want and have them take pictures. I haven't had any hooker headers fit any combination without needing some "massaging". I have had 2 sets of 1 7/8 hooker competition headers, one set came with the car and were junk when I got it, I bought another set just to get the car running, spent about 3 hours modifying them so they wouldn't hit
1) the torsion bar on the driver's side (stock 383 t-bar) = heat and a large socket to make a "channel" for the t-bar to run through
2) the collector tube on the driver's side pointing right at the torsion bar crossmember, missing the "hump" cutout completely = lotsa heat and a come-a-long
3) clearance to put header bolts in = hammer
4) the steering column shaft (manual steering!) = heat and a large socket to make another "channel"
with all that, they lasted about 2500 miles before bottoming out and getting squashed, and my ride height wasn't that low.
Would suck to get ceramic ones then have to bash 'em with a hammer.
If you can cover the cost, I think the TTI ones would be the way to go
