Chrysler was almost belly up at that time, no money for Bob.
I’ll add, he cut up and welded back a sbc intake to fit the W2s, before Eldebrock made one like it. He said the engine wouldn’t fall out of a tree untill he changed those lifter angles! My question WHY didn’t Chrysler incorporate that in the new R block? Plus special cans had to be made to use those angles (spread out too). A true ‘hot Rodder’ he MADE what he needed to work!