You need to adjust the chamber with the wheel turned to the left with the back wheel on a 2 x 4. You adjust both front tires to be flat that way, so you have maximum tire contact with the wheel turned.
This only works on adjustable front axles...
Don't just put chamber in your tractors front end because you see the cup guys do it, they run a sprung front end and as you add load to the right front tire it responds completely different than our unsprung wheel. They deal with dive, spring rates and spring load, sprung and unsprung weight, shock packages and different heights and preload on their springs using jacking screws.
Scrub will exaggerate the push you feel in the turn, so minimizing scrub, increase tire contact, and correct tire pressures will really help the turning force of the front of the tractor..but don't forget bias and cross weight.. as they increase or decrease the loading on the individual tires...