Match Race 1972 ~ 'Duster 340 vs 'GTO 400'

I know I won't make any friends here talking about Pontiac's, but I'd love to put together a 455 short block with good rods, forged flattops and top it off with a pair of round port 72cc Eddy's. The resulting 12+ compression and some cam would produce a nice bracket engine that should give a 550/550 engine shifted at 6k max.

I'd love to know the combo Steve Caldwell is running in his Ventura?