The motor sound like it will be a good all around motor.The carb is aftermarket,does it have a single or duel carbs?It's not bad that it is bored over .60,but the max you can go is 100 over before it need to be resleaved.I'd do a compression check (because you didn't say what size domes were in the head) to see what octane gas you need to run.
Welcome to the HQ.