Gday go to BALYLES ON LINE THAY ARE AN AMERICAN MOB YOU CAN EITHER BUY A 310 MOTOR PARTS OR BRTTER STILL GET THE 390 MOTOR COMPLETE AND IT WILL SLOT STRAIGHT INTO YOUR 310 FRAME THE DO A MUFFLER MOD AND RETUNE THE CARB TO RICHER SETTINGS AND YOU WILL BE VERY HAPPY ;o) IVE DONE THIS MYSELF :o)
