i had mine copied from the 440 intake cut out the entire center an welded in a 5/8 aluminum piece in and it has to be made on the same plane as the crank c/l.
this is the landy one.
they wanted $1000 to make one


67 Coronet 383 hogged out 906's 727 430 dana best 10.48 @126.80 1.47 60 on fogger same car pump gas 605 wedge 9.98 @ 138.42 1.50 60 on wore out 9 inch radial slick ss springs and frame connectors its got more in it!!! 72 Newport 2 door 400 727 85 Ram 440 4 speed O/D 3.54 dana