Bottle Rocket into the 8's in the 1/8 with slipping clutch

Mopar Sam said
But, with the OD ratios, If you shifted at 7000 (just an example), you would drop to 3783 at the 1-2 shift. The regular 4 speed would drop from 7000 to 5026.

RPM will only drop that far if the clutch is locked up on the gear change. The clutch shouldn’t be locked up on the gear change.