DCR & Fuel Octane Questions

Chirt

Daily Driver
Jan 15, 2013
38
0
0
Wamego/Manhattan, Ks
Im trying to figure out what I can get away with running for fuel. Ive calculated my dcr using this calculator:
It gives me a dcr of 7.80:1. From what I can tell I should be safe running on 92 octane. But, would probably run a 50/50 mix of 92/110. The engine is a mild 476, 781's with 219/188 valves and some port work. I'm guessing the heads to be in the 116cc range for combustion chambers but, have read of some cc'ing up to 120cc's.
Pistons:
Cam:
These are the #'s I used in the calculator, top to bottom
8
4.350
4
6.135
10.7
73
0
1020

Basically looking for someone to double check my #'s and either tell me its all good or let me know which route to take on fuel.
Thanks in advance, and sorry for the long post.
 
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