Quote:
Originally Posted by Half-Inch Stud
New Valvespings are a real good decision for rpms over 5,000.
I rarely, if ever renewed my valvesprings.
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Most times on the track I did not rev over about 5400 since it makes not much sense. But the car is mainly steet driven (99%) and the engine will not spend too much time at very high rpms.
I just want it to be safe, if occasionally I will rev to a max of 6000.