Sure grip 7 1/4 strenght?

Hipo 65, I have a 7 1/4 SG with 3.23 gears in my 66 fish and I have a worked 273 pushing 325 hp, with a 904 and a 2500 stall custom made converter, and I have no issues with it to date. I also didn't want to loose the SBP because I have a beautiful set of Cal Shelby slots on my baby.