If it doesn't fit, mill off the flange and have a new flange welded on. Presto-chango. Piece of cake. That's how you can get almost any header or any intake manifold to fit your engine (whichever it is). So long as the ports mostly match up. If they don't, cut about an inch back on the primaries and weld up some new curved primaries.



Or just go down and buy the manifold they make for it.