2019 summer race.... Jadaharabi vs 318willrun

Well I dropped $ on a POS RM21H9G with no drive train. It comes home in August. I have to try and trade the 73 Chevy C30 for a 440 motorhome engine. Finish scrapping a crown vic that will give me an 8.8 with traction lock 3.27:1 31 spline axle rear. Remove the 84 LX hatchback mustang so I can bring the Plymouth home. Ah the things we do.:rofl::steering::D
What is a RM12H9G..?..