I ran the numbers from the Icon catalog so no worries there. I never work off of a distributor data page, unless it is for something exclusively from that distributor, like this cam.
I have run 10.0 and 10.3 on the street, with DCR's of 8.0 and 8.3 respectively, at the same elevation as the OP. The 8.3 needed more care with the timing. The OP is well under that, so I'd not worry at all.
OK, on the trans, and the stock stall TC. My 8.3 DCR 351C was with a stock TC, 3.08 rear, similar but a bit smaller cam with 14LSA, and would not burn a lot of tire, but beat factory 440 GTX's every time. They would get me a half car lenght on launch, but by the time the 1-2 shift came at 55 mph, I was pulling past them, and once in 2nd they kept falling back. They would give up before getting to the 2-3 shift at 85 mph LOL. The 8.0 is my son's 340 in a '65 Cuda with a 3.55 and it takes considerable care on the launch to not fry street tires. With your 4.30 rear, this DCR, and a stock TC, it is going to have more torque at launch than you can connect to the ground.
The 114 LSA on the cam will help with mileage, and will make the transition from low RPM operation up onto the main torque plateau at mid RPM's smoother than a narrow LSA cam. It will build torque up smoothly with RPM, and will be nice on the street.