I simulated the cam and compression difference head-to-head. Stock piston 350 at 9.6:1 and LT1 piston 350 at 10.1:1. Both with 0.016" compressed head gaskets. Both modeled with stock Mexico 062 heads for the sake of comparison. Stock SFI with 650 cfm of flow. HP exhaust setup on both approximately replicates a higher performance factory style exhaust system.
The 9.6:1 395' cammed engine came out at 301 hp @ 4,500 and 399 tq @ 3,000. The 10.1:1 492' cammed engine 326 @ 5,000 and 410 tq @ 3,500. Remember too that this is going in front of a 3spd automatic without lockup. Even with the 3.08 gears it will be up in the 2,500-3,000 rpm range depending on the speed on the highway.
395' cam 9.6:1
RPM-----HP-----TQ
2,000---138---362
2,500---181---380
3,000---228---399
3,500---266---398
4,000---288---378
4,500---301---351
5,000---296---311
5,500---275---263
492' cam 10.1:1
RPM-----HP-----TQ
2,000---133---349
2,500---180---377
3,000---230---402
3,500---273---410
4,000---302---397
4,500---322---376
5,000---326---343
5,500---314---300