[Lizard_King]

Based on the design of the car (Backdraft), it can only go 160mph AND NO HIGHER,it doesn't matter how much horsepower you put in it!!!!!! A big block will out balance the front by 360IBSs to heavy......351w or 351c stroked to a 408, is the magic number and weight perfomance.... I have a Keith Craft 351w/408 pushing 585hp at the flywheel and 490 @ the rear wheel with 510 IBS of torque at the rear wheel. My buddy just bought a 911 twin turbo for $180,000, and I pulled him just till we got to 110mph and he got me on the top end. BUT NOT THE 1/4 though!!!!!!!! Go with the 351/408 500hp or better to really move!!!! Also the Backdraft comes with a radiator out of a 7 series BMW, it is a single coil....NO GOOD!!!!!!! Send the radiator out to C&R and they will make a copy from scratch, with 4 coils and 5 inchs thick. Also change the fans to a 1000 cfm too I think 650 is stock. I can sit at a red light all day long now @ 185 temp........ The 408 runs just a bit on the hot side too........ Good luck!!!!!!!