Ive got a 03 gmc 4.8 pretty much stock motor w bolt ons corvette servo and the super hold 4th servo other that stock trans.. When I get my truck tuned how high can i turn my shift points up?? just curious what u guys are runnin and what ya have ur towhaul button set at.. thanks for the help

 

you set your shift points by your engine power. RPM'S were your motor makes it's power.

 

5800-6000 with a stock cam probably.

 

I have done quite a bit of tuning and mostly on ls silverados I have had no problems shifting 4.8 5.3 and 6.0s at 6000 and for the hardcore 6100 possible 6200 but over six breakage is possible. You also must use your brain if you dog your truck daily or if its high mile 150k plus 6k and up is to much try 5800 or 5900.