340 Mopar 416 Indy 360-1 with 904

Any idea how much horsepower/torque??
Torque no. HP......guessing 550-575 like it is with small cam and unported heads. Never had it to the track but got a buddy with a Fairlane that runs 7.00s in 1/8 that I pulled away from on the street from a roll. Put about a car length on him through 2nd and high gear. That's about the only comparison I have to anything.