| You are in the territory where you are pushing more torque/power. What you should ask for is people with similar power levels/mods as to what tires to get. I run Kumho SPTs right now and 1st gear is useless with my current mods.  It was not that bad before I went with Sport 530s, JWT400 Cams, MSP Manifolds and it's about to get worse with my new motor and further modifications this winter. You want to go to a stickier tire, which means it will have a lower treadware rating (100-200).  Your PS2's have a 220 treadware rating. 
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