Last week, I purchased a 1976 TA 455 4spd sight unseen. I had the car shipped to my wife's home in CA. The car is absolutely pristine. My wife found paperwork in the car that indicates a Crane Cam, Holley Carb, Offenhauser EGR Adapter, Blackjack headers. I have the paper on the cam specs, but don't understand what it means. My question is: is there anyway to estimate the HP with these modifications ?