Well i think it depends on how set on kill the motor is . a customer of mine had ray barton build him a 9 inch deck height 440 r3 small block . now i know yes it is a 48 degree block . but it has 4 year old indy -1s not the new raised port stuff but i know ray did a considerable amount more port work after receiving them from indy. its 14 to 1 on c 16 single dominator but it has a very low drag ring pack motor made peak power at 6900 and was 754 i forget what the torque was . car has 1 7/8 to 2 to 2 1/8 step headers 30 inches long with merge collectors and a vacumn pump and such . car weighs 2925 with driver and has run a best of 9.09 at 146 with a 1.23 sixty foot. this has been a killer motor no problems for three years racing two classes every weekend. its a 67 valiant back half car with a full stock interior still except the back seat and a 904 to . by the way know problems with the tranny either .