[Dragsinger]

A drag race package that performs as expected does so because 100's of small things add up to make a difference.

Especially with smaller engines like the Super 10's 327 package anything that cuts drag must be considered. The design of a Powerglide is such that when in "high" gear, the reverse friction clutches spin at output shaft speed while the steel plates remain stationary. Thus, we have potential for rotating resistance. With a finish line RPM of 8500 + extra clearance in the reverse clutch pack will free up some drag.

In addition, having less friction plates in the clutch pack gives another lower drag benefit.

The photos show a .100" stack of feeler gauges that only have slight drag between clutch plates. The reverse pack contains only 4 friction plates, proper clearance is set by selecting an extra steel plate of the correct dimension.

And the 1.98 gear set goes in next.