^ Tom knows his stuff. I won't disclose what my pump gas SB/SS makes in hp, but most of the reputable builders can put you in this area with their headwork and other modifications.A 11.1 compression SB with all the best parts would make low 70s on pump gas.
Go to 14.1 compression and race gas and you will be high 70s, low 80s in HP
With 15/37 gearing and 22" rear tires, I can pull high 90's in mph in the Desert on the power line roads.no. mph lol high 80's
Why 108 vs 105.5...isnt 108 HEAVIER?I prefer the long rod +6 with a 108 bore, 825cc of reliable high HP without the worry of case problems. Keep the weight as close to center as possible.