Just won an HPI BLITZ ESE KIT

, and aim to run on astro and maybe at the MK GP if they allow!! first question what tyres work Fastrax or best to stick with Schumacher also what motor size, was thinking along the lines of a 6.5t with 120amp Hobbywing esc, drove an X-Factory x6 squared today with a 7.5t, and it was a bit slow down the straight, so maybe 5.5t would be better suited with the extra weight!! any opinions welcome.