One of the tricks used in both Stock and SS on the 440 6 paks was to cut the deck way down to low deck specs and build the motor from thier, or mold a high deck pad onto a 400 block I was offered a Eddy NHRA legal(it was on the car when it set a NHRA record in C/SA, not Pauls car ) 6 pak intake that would have requiered intake spacer to make it fit on a stock deck 440 The owner was selling that intake as he had quit racing NHRA stock and he knew I like 6 paks. Making the Weinand 440 6 pak SS manifold fit on a SS car with a cut down 440 deck would be no big deal, even back then with the rulses they had on intakes then I was thinking the Ron Butler had a lot to do with building that car, maybe not