peak shift point is when torque for the lower gear drops below the torque available in the next gear... depending on your mods this will be different for every car tho; so you'd need to get your car on a dyno to find each shift point.
but it's a good bet, with a near stock (only bolt on mods), that you should just take it to redline. as for street driving tho, i recommend 3,000 rpm.
