Hello im new to karting im getting a complete setup 3 karts total i mainly plan on racing indoors and then if i like it going to race outdoors next year the karts all have flate heads what can i do to get even with the animal motors were running a 360 class with wka rules..not sure what is legal for the flat heads..the karts im getting is a 04 buller velocity 06 prowler and 01 buller i do belive the prowler has a dover racing motor he said that this kart is the fastes and most built of the three