Tachometer went into red zone slightly, willl I have problems in future?

[Winstar]

Hi

I was helping a friend boosting a car which it didn't help the car charge [I am thinking electrical problem, alternator or battery]

While having the car connecting I let my car idle for 5 - 6 mins and it didn't charge properly, so I tried revving the engine a few times and the last time I tried revving it higher it went into the red zone for a 1 mm or 2 mm for a second or less and the car slightly shivered

I was wondering will I have any problems in the future? I have never done this before and this was the first time I ever did it in the past 6 months or so I've owned it.

Thanks,
Mike

[RC1]

No problem, not something you want to do regularly but it won't cause you any problems. The slight shuddering you felt was the rev limiter shutting off fuel.