273 Hi-Po pistons

I know the pins is where the "factory" ballenced them but,im kinda anl... & i used some 318 thin wrist pins that lightened them up 60grm each! Plus who ever assembled it before i got the motor used thin pin with the flat topps requireing a ballance job to begin with. & fyi guy's egge is droppen the ball on there pistons! i had placed an order with them they said 2 weeks. well 2.5 weeks later i called & was they didnt know when they would have them!? so i cancled order & got they from kanter. they were a little more$ but have correct hight & have teflon coated skirts! just a heads up!