tamiya 2011 black help

[cryer-evo]

hi all i have just got my self a tamiya Avante 2011 blake ltd
as bin wonting one since the 1980s but never had the money to get one.
and i wont to race it at my locall club
is there anything i can add to it to make it any better for handalling
would like to put better shox on it but not shour if the tamiya trf ones will fit allso wot wheels do i need as the kit ones are to small for 2.2 tyres

any help would be very helpfull