hi forum

i have a stock converter in a 6L50e 6speed gear box in a holden ve running T43 tcm

tomorrow the car is booked in for hi stall upgrade 3,000RPM fitted with new diff

just want to know if the hi stall will be safe to drive 60-100km/h Until i get it to a dyno for a adjustment on the current tune

i dont really understand the tune i have convertor settings seem only to be set at idle or below idle rpm's

any help be much greatfull cheers