need some help with setup

my set up is this MMP/13.5ballistic

FT b4.1

MMP/13.5ballistic
-1camber all around
30 degree castor's
.5hubs 2.5 toe block /2.5 anti-squat
brown front/ green Rear springs, 30wt all # 2pistons all
geared 28/75
18degree timing on ESC from 6000-50000
Groovy/double-dee's
loose ball diff
medium wheelbase

everything else is FT set-up

the problem is i need to drop 1 more second off my lap times. or id be happy with .5 sec. I'm just as fast as the quicker guys down the straight and through the jumps. so i'm thinking my corner speed needs to be more.. anyone see anything wrong with my set-up? go to 0 hubs? more/less timing? i'm temping at 110 on motor/esc

indoor clay


whats everyone running for Castor blocks? 25 or 30? also what rear hubs? and toe block?