i have 2 pistons blow out and jam stuck on my blaster its bone stock rite now except the wiseco piston i want to bore it out with changing the carb i heard its possible to a certain diameter but bigger requires a bigger carb. what size should i get it bored to with out upgrading the carb and also what size piston should i get for that specific bore size??? and does anybody know about how much money its going to set me back for just the boring and honing????? thanks Blaster Fans!!!!!