Trouble Timing my 340

Think whats happening with the weights is once you start it and rev it to get it running smoothly, it hits 2,500 or so and once the weights swing out, they stay out at 1,000 rpm

If the motor starts without kicking back, I would just leave it alone - so long as it doesn't ping under load - the 4.30 gears should help out not lugging the motor down