I saw gear it for wheelies, go smallest sprocket in the front and biggest in the back.
it will be high reving and youll be screaming, but it will be fun. i might not last a super long time. but youll have fun.
i had a polini with 12x45 and it would wheelie at about 20 when the power band hit. it would literally pull up until about 30. it was sweet, but got old after a couple group rides.