Where Are Whipple superchargers made Brisbane

https://www.minds.com/lyndan8izx/blog/the-advanced-guide-to-yella-terra-whipple-superchargers-aust-1020922193063792640

The Whipple 2300 screw is better fit for bigger engines or higher rpm. At 1500rpm it gave up 50 ft. lbs. to the MP112 (350 ft. lbs. to 400 ft. lbs.) and also just captured up and also crossed over (making even