The quick and dirty way for more fuel on a PT pump is drill out the plug in the throttle shaft and turn the slotted screw out 1/4 to 1/2 a turn. This will not increase rpm, only fuel rate. To increase rpm you must shim the gov. spring under the bell cover, if you do this you won't want to back the throttle shaft screw out. Keep in mind your motor has a smaller turbo than a 300 and is static timed differently too I think. A really dirty way to up the rpm's is a stinger bolt, a 3/8 24 fine thread bolt put in place of the 1/8 pipe plug in the bell. Just run in the bolt till it touches the idle screw and now you have no upper limit on rpm! Please don't do this, I mention it for info only, many motors have been scattered from this old stunt!