A couple questions about supercharging a 440

I agree with Bob, no need to go in the block as long as your static compression ratio is 8.5 or below. The cam is a little tame but will suffice. If you don't plan on more than 6 or 7 lbs of boost then you are good to go. I would change out the rear gears to maybe a 3.23 gearset. You will have gobs of torque to turn them. Spend your money on cooling and carbs. Look around you can usually find a used blower setup fairly cheap. Good luck, blowers are a blast.

Jack