Pulley Diameters

C, I would remove fans from front of radiator and if you can tilt your condenser forward at the top to let more unrestricted air pass thru the radiator may help. I did it on my 499" in the GTS and along with the Contour fans has my problem taken care of. No telling how . time and money I spent chasing heat problems. I would get to 240 before taking those underdrive March pulleys off and going steel overdrive and Contour fans. Joe