max rpm and what tach

[worrgp]

so i just got my chip installed and now i am able to run up to 6500 is this safe...... and also what tach glowshift is cheap but do they work and is there a write up on the installation some 1 could link me 2 thanks

 

[Winters98GT]

what is done to your car? if your car is stock, no need to shift it past 5800-6000rpm, otherwise, you will just hurt your performance and risk valvetrain damage with the stock springs.

 

[BlownStangGT]

Nothing wrong with the stock tach. Sure it might be off some, but just get a raptor shift light. They are nice little pieces!