i am an ex vp fuel dealer..trust me they make high enough octane gas to support what your speaking of....i would say c-16 would take care of the bigger part ..but they do make a higher octane gas if need be...
Sunoco also makes a 118 octane version now ..if you need something that high...much more reasonable..
now that alcohol has went thru the roof ( price) ..gas is back practical ( price wise ) for many..
good luck...also Jim is a nice guy..be prepared to tell him what your combo is including heads etc,,,
he will get you in the ball park
__________________
Bjuice..
"I'M YOUR HUCKLEBERRY ! "