So after much research and so far spot on advise I have decised that for the mean time to stay with the iron heads. Now to choose the best heads for my stock 455 block. First question can heads intended for 400's be used on a 455 block? If so I have found two very clean heads already magnafluxed and ready to go (7k3)2.11/1.77 96cc[$450] and (6x-4)2.11/1.66 93.74cc[$400]. Are these good prices and what should I expext as far as preformance over my 114cc 4x-1h heads.
Thanks as always