I'm using Hooker Super Comps, 2 inchers, the coated version, on my BB. Purchased from Jeg's for $589 plus ship. The Jeg's part number is 05202205-1. I imagine the Hooker part number is 2205-1.
My 69 is a four speed car with no A/C or pwr steer. The issue I had, which is common with most BB headers, is, with aftermarket heads (I have GM Performance O-Ports) I had to use different head bolts with flatter heads so the flanges would line up...(the four lower head bolts on each side just below the header flanges).
Also, the steering box/rag joint has to be removed. Other than that, pretty straight forward.
Nice coating, thick flanges, clear everything fine, and spark plug replacement is a breeze except for # 7 which is reached from under the car (if you have pwr brakes). Also, you'll need to get creative with plug-wire routing to good ol' number 7.
You can also run the larger PF-35 (A/C Delco) oil filter with these headers. Ground clearance is fine but I set my cars up a little higher than most. Oh yeah, I did have to slightly re-route the fuel line (the tank to pump line) from the side of the frame to the top,..no big deal.
Very pleased,..especially after hearing about the torture of BB headers from others.