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Montgomery City, MO | My father has a 385 on 620R42 Firestone R1Ws. It has 110 lb/horse wt package. It is a nice setup, 710's would not hurt it a bit,however 520R46's would not be enough in my opinion.
I have a 335 on 520R46 Firestone 23 DT R1W's that is 120 lb/horse. This is a nice setup as well, but if I added 50 horsepower I think it would need more tire. I can find over 10% slippage in a tough spot on the NH3 bar. | |
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STX385 Tires
