rearenginekarts.com

I located the Ansel Grose patents for the Grose-Jet ... the first patent does contain a fair amount of detail on the actual design and how it is made...







....looks like Ansel Grose applied his valve design to making fluffy ice cream...

Jeff- This seems like a great idea, having seen more than my share of necked fuel control needles.Strangely, none have been spotted by me yet in small engines, outboards, or older cars.
bill