All great information guys.. I'm not sure where I got the idea the 800sc was a 502ci engine.. probably just assumed it was i suppose.. like mentioned above my engine will not resemble the 800 except for the 420 blower but I feel pretty good about my goal of 800hp ,give or take a little.. with the combination I have in mind.. thanks again

the 600 sc is a 502 with a 420 blower. Could base it off that and turn it up a bit

Throw some 3.8L Whipples on your 502's with reduced compression and they'll be 800hp... Run them with the Holley EFI and get some safety into the build....