I've Hooker super comps on my G body, but they only come in 1 7/8" they are around $500.00. I was fortunate to find a set of Lemons for my 434" going into the same car, they are 2" to 2 1/8" step headers with 4" collectors. I just happened across them on ebay and paid $350.00 for them, i was the only bidder. They didn't even have carbon in them still new. The guy told me he had paid $1320.00 for them with EGT bungs in all tubes. If you have some time maybe you can get lucky like i did, just keep watching.
Zip.