Here's a video:
I have been running this index class for three years now.
It has been a real challenge; first - to get a good reaction time on a .400 pro tree, and second - to run right on my 10.50 index. This task has been harder since I am usually the slowest car to show up. All the other diggers and altereds have V8s and I have to look back over my shoulder at the oncoming faster car to gage the stripe. Not good.
What I finally decided to do was ignore the other car completely at the top end. Rather I have worked on perfecting what I like to call "landmark racing". That is to say, pick a landmark on the track - a crack in the pavement, a guardrail post, a vehicle or pop-up parked along the fence, and lift at that point. This requires a lot of discipline to not try to get back on it at the stripe. In the video at the in-car pass notice the bell crank on the throttle linkage, as it goes from WOT to full closed about 200 feet before the lights.
Works for me. Your results may vary.