I agree with everything Y2KSVT said except the secondaries open at 3800 rpm (at least thats when mine do). I do everything that he does but I rev it to about 5100 rpm and then slip the clutch. The tires will chirp a few times and when they hook up 100% the engine doesnt bog at all cause its around 5-55k rpm. This is hard on the car but if you have good tires and your at a good track this is the best way. Ever since I went from 3500rpm launching to 5k rpm my 60 fts have gone from 2.3s to 2.2s. Which is huge in a 1/4 mile.( i have Neo Gen Nittos)
just my .02