The combinations listed by Mopower71 are way too specific to make this a hypothetical situation. As it appears to me he wants only the combinations listed. The 440 being of larger bore and stroke and correct me if I'm wrong but a 906 head will flow more air than an x head with the same porting just by virtue of port size and a .590 cam will allow more air into the combustion chamber than a .525 cam therefore an engine really being nothing more than an "air pump" the 440 even though a couple hundred pounds heavier on average and giving up 2 points compression will still be faster in the same car using the same driver. Wheww!...with that being said GIVE IT A REST!
