I still do not understand Ford thinking? In the mid 60s they had the 427 platform. More than just a formidable engine program. Even developed a SOHC cam hemi version. (That was heavy with tuning difficulties, but certainly potential is there.) They scrap the 427 program for their 429-460. On the performance front boat anchors. So they then say. "Hey, you'll love the Boss 429?" Under performed for any drag race thus street war platform. So they. "We got this. Try the 428 CJ?" Better engine. But in '68? Late to the game. And that's their big blocks. Their small block program was even more chaotic in my opinion.