Factory Showdown at INDY

[D.Johns]

Originally Posted by Superfan1

I agree, adding 300 lbs will slow the AA 8.90 cars to 9.20 to 9.30. After that check your math; 9.20 to 9.30 under the 9.90 index is 6 to 7 tenths under. Last year, with about 140 cars in attendance, it took .617 under to qualify in Stock.

The last 2 events the "8.90" cars (Bo/Drew/Don) have been running 9.2-9.3s in qualifying. He's adding tenths for the 300# based on what they are currently running in weather conditions.