That chassis has given me fits also. As for the engine it is supposed to be a ford 427 SOHC but the timing cover, intake and valve covers are wrong. Kind of a caricature of an SOHC to avoid licencing. The only thing wrong up-top of the valve covers is the plug locations are in the wrong locations, the bottom of them are just bit of a mess.
That being said, Dave is doing a really nice job of getting this thing looking good and my comments do not reflect on anything he has done.