Yes, that's also what I usually did. I would go through the lights in 3rd and then only go to 4th once I lifted off the pedal. I had a custom made lockup converter with anti balloon plates so I could use the lockup option on the street for better gas mileage. I had a switch mounted on the shifter next to the line lock so I could toggle the lockup on and off at will. The trans lockup solenoids were wired so that it could only lock up in 3rd and 4th. That system worked very well until one day I forgot to unlock at the track prior to a run and when I banged 3rd and it locked up at the top end which I'm pretty sure smoked the lockup clutch in the converter as it never work after that ;-( In hind sight I should have wired it so it would only lockup in 4th gear. If I were to to do it al over I'm pretty sure I would use a 4L60E instead of the 700R4 as I'm told it's a much better starting point for a high performance overdrive trans. The 700R4 requires tons of tweaks and trick parts to work reliably on the track. I've also been told that a Turbo 350 with a gear vendors overdrive unit on the back end is a very strong combination but the gear vendors OD units are a bit pricey. Hope this helps! Bill.