I mean that the chassis from the rollcage back should be upgraded to install the chute mount, it's too weak now as the chute will pull 1-1.5G.
I want to cross the finish line below 7000rpm and I think that moving from 4.11 -> 4.33 and 6400rpm -> 6800 rpm would help maybe 0.1 - 0.2 seconds and it still would stay under 150mph.