here is a 615ci we built for an old friend of ours who use to run the unlimited class years ago we balance and blue printed the engine and ported the heads and got the heads to go 386 cfm on the intake port and modified the pan for the frame of the car this is fuel injected based on our MB800na the engine made 812hp and 790 ft lbs now were going to mate it to a 6 speed tranny and drop it in the car.

Wowser!