Would twin brushless setup with dual MMM's work withmy set up?

[Rivermaxx]

Is there any proof to this? I just seems that 2 mmm 2650 combos will make way more power than 1 with a bigger motor too me. 2 6s batts running 22volts each, 2 esc's for double the amperage capability. Yes there will be a little more weight but I am sure it would be fairly minimal.I theory 1 2650kv on 6s is rated @ ~3hp 2 should be around 6hp together compared to the 4hp bigger motor. I might be wrong in my thinking though.