I like the idea! I understand the land speed influence, as the SCTA definition of a "rear engine modified roadster" is: "The driver's seat shall be entirely in front of the engine. The entire engine shall be forward of the centerline of the rear axle. The drivers line of sight shall be over the bodywork. Streamlining ahead of and including the cowl and channeling is permitted" What is the judging criteria for the AMBR beyond the obvious requirement of beauty?
If you are using a side shift trans, buckled directly to the rearend, it will get very tight. Don Waite didn't use a trans, and look where he sits in the car. I did this belly tank 3 years ago, you run out of room in a hurry. Good luck with your project .
One thing to consider is moving rear axle centre line 2-3 inches back, this was common on Rear Modified roadsters
Just wondering, SCTA rules state that the body must face the original direction as manufactures, does AMBR have the same rule? Some gifted artist here could draw up some concepts with the body swapped 180 degrees.