My '71 Barracuda with 14" Ralleye's had it brushed on all 4 drums. Very sloppy and very little. Not sure it would have even shown through?!

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.