What kind of power?

Casting Engine CI Years Intake Exhaust
4027569 360 1977-86 1.88 1.60

Taken from http://www.mopar1.us/headcastnumber.html. Generally the best head casting resource out there that I've found so far. Obviously running 2.02 valves, there's been some work done. You won't get reliable numbers unless you take em off and flowbench em. Which really, if the thing is running great, doesn't make sense.

If I was you. I would just let people guess at its power and smoke em at the lights. Bunch of numbers don't mean **** to most guys anyways. And no matter what you'll get the "Oh its not (whatever) horse?". Trust me.

And if you really wanted bragging numbers, take it to the strip and see what she does.