heres the pic of the collapsible intermediate shaft setup. the rag joint is from lee for their box, the bottom of the shaft is $19 from cpp, the nickle 3/4 dd shaft is $29 from cpp and the 1"-48 x 3/4 dd nickle u-joint was $49 from cpp.
i called frank today to make sure the rag joint would clear the wegner front drive and got the ok. i know they ran it on the bull run chevelle, but wanted to make sure they didnt modify anything to make it work.
as you can see it clears, but barely. theres probably 3/16-1/4" at the tightest spot which is right in the middle of the rubber portion. its hard to see from the angle of the pic, but the entire nickle portion has TONS of room. the hole in the shaved firewall is as close to stock as i could get it, so this should be the same for others running an ls/edelbrock header setup.