I went to the track on Saturday and I turned the boost up on my car. I race a 9.50 index class but I have always wanted to go 8 seconds so I cranked it up and went 8.95 so pretty happy about that in 90 degree weather. I usually 60 ft in the 1.35-1.30 range but it spun pretty bad. My question is I noticed at the end of the track I could feel some vibration in the car is this normal? I have Bias-ply tires and they are balanced. Should I rotate my driveshaft? Just not sure if I car should be like that it did it on both passes right at then end probably like over 145. It does not do it all until then.
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