Well, I welded and ported my Weiand tunnel ram for my old Edy headed 440 with two 750 Dps and ran 9.90-9.80 @ 135 in a 69 Coronet
Also i built a mostly stock .030 over 440 with 915 heads and a custom ground solid flat tappet cam and a set of old Isky non roller rockers, with a Weiand team G and a 1050 Dominator it made like 480hp and 500tq with out changing annything just bolting a Wiand Tunnel Ram un touched with 2 750 dps tuned to my race 440 it made 515hp and 540tq belive it or not,
((((Tunnel Rams Work if you have the rite one))))