small block fenderwell headers?

Hedman made fenderwells, Cyclone made them years ago (I got a set but they are small tube, 273 port size) ProParts makes a semi set for a B/RB that can be adapted to an LA with a flange and it has 1 3/4 tubes. Because fenderwells have sweeping bends, its not hard to fab them with a tight tube bender.