I ran an original Ford tunnel wedge with 428 CJ heads years ago with my Torino bracket car, no issues. It’s the same intake Jay used for his book testing, he probably remembers which heads the engines he tested it with had. I can’t say how the various aftermarket versions fit at the bottom of the port. I think, if I remember, it’s some of the versions of the Sidewinder that have the issue with not having enough material at the bottom of the manifold to seal with the Low Riser port.