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They are 145x 15 michelin xzx 's from my old prostreet DUSTER
that only weighed about 2600 lbs, my vette weights about 3400 lbs i guess so i wondered what every one else ran on the front skinnys ( mine are autodrag centerlines )
My skinnies are the 165-15 Signet radial with a 36PSI at 1250 LBS rating.
Increase the pressure to 40 PSI at the track. At 36PSI these tires look very underflated. My car weighs 3125 at the track.