Where those combos down here in Aus ? I am building a street 427 with the bigger 280cc Victor heads (not Jr) 11:1 on pump fuel and a custom roller similar to the XR292 comp sreet roller, CHI commander manifold(also have super vic for back up) and would be rapt to achieve 680 HP.
Motor getting built at TFC in Melbourne still waiting for F'n custom oilpan from the states.
[addsig]