Hope taller tires won't hurt pinion angle too much
I missed the part about raising the rear end . I thought he was saying the taller tire would raise the rear…. So it depends on how you raise the rear end .
The question is “will your car be faster with the bigger tires?)
They will add rotating mass and the overall ratio of the rear gearing. Unless you are blowing the tires off you may actually lose some 60ft ??
Just thinking out loud here .