The last car I had together was a 73 dart with a well built, but basic 440. It probably made an honest 500 hp but not much more. The torque was great, and as stated earlier, that's what feels good on the road. I have no real crazy goals of speed. If I ran it in the quarter in street trim I'd be very happy to be anywhere in the 11s. This engine will eventually be replaced with a big block turbo build. I was guessing forged internals but wasn't sure. Knowing that 550 hp is the limit on the scat crank, really solidifies it for me. I don't mind spending the extra money because I'd rather not wipe my butt twice.