68 valiant signet

i don't know if you've seen my thread about altering a 440 tunnel ram to fit my 383 but i've gone and bought it. i'll collect it late may as i'll be in the area (family holiday) and i'm too tight to pay shipping, lol.
i'm not sure yet if i'll cut a section out of the middle to narrow it or take a bit out of the runners each side parallel to the gasket face and drop the centre back down into the middle? either way it's only metal so it's doable.
cheers, neil.