Need stall converter advice

[Rev]

May have fried the stock C-4 in my '66 coupe. If I have to remove/install a rebuild, I'm thinking maybe a B&M Hole Shot 2400 converter and a shift kit as well. If anyone is knowledgeable about automatics, I could use advice. (1) Does reving between 2-3 upshifts mean the high gear clutches are toast? (2) How will the 2400 Hole Shot act on the street; gas mileage, cruise, etc.? (3) How much good will this converter do at the drag strip 1/4 mile. Have about 300 hp @ 5100 / 340 lb-ft @ 3700 now and run 13.97 at 100.3 with the stock C-4 in a 3020 lb. "66 coupe (wt.is without me). Any input appreciated.

Rev

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'66 Coupe, 306, windage
tray, TRW flat tops, 351W
heads,pocket ported, 268
CC hydraulic cam, R tip
R's, Edelbrock Performer,
600 CFM Holley vac. secs.,
Mallory Unilite, coil, fuel
pump, Tri-Y headers, 2 1/2 "
custom pipes, 3 chamber
Flows, stock C-4, 3.25
Currie built 8" rear,
March under drive pulleys,
13.97 e.t., 100.1 mph
1/4 mi.