Does anybody know why the #10 plate has that ramp 3/4 of the way down? And I want to but in a boost gauge what range does it need for a TST kit?

 

Your governor lever only travels up at max 3/8". At first I was thinking a 30lb gauge would be fine but do yourself a favor and get a 60lb. Once you start bombing it's a deadly addiction and you'll need more room on the boost gauge.