what HP to expect? BB.

You need a helmet that passes SNELL04 standards I think... Maybe a racefr with the current rule book can verify that... Look in the helmet and it will have a SNELL rating on a decal in it. The inspectors look for that decal. You need to have al the safety stuff.. belts, battery hold down, and some sort fo coolant catch can. I used a small soda bottle clamped to the radiator support. Make sure you have 2 throttle return springs, and the carb's original on the shaft doesnt count... And you should not have more than 1' of rubber fuel line anywhere. If it's all on the engine and visible they may flag you for it. Rubber is a connector, not a transporter when it comes to drag racing and fuel lines. Be safe, try to ignore the world around you. I swear if I had to shift it I could make a Fuel Dragster run 12s...