73' B3 340 Duster pro touring build

when you get it figured out...clue me in...I'm still in the 70's with a 4-bar/4 link set-up. Never could figure out how these triangulated 4-bar set-up hook up....there is no instant center or imaginary intersection of the bars....I figured it must be for auto-cross and I not about to make my 70's hot rod into a foriegn race car....thats just me

I did notice ....I think it is Abody Joe...has a yellow dart(?)...when he lauches his squats like I've never seen before...and I think he has a Bill O'Reiley (AlterKation) Lynx set-up or whatever you call it