I spotted the guy through a full workout in about 1995 when he was in Toronto doing an autograph signing at MuscleMag's (then) offices (I was an assistant editor). (Kovacs was hanging with us, doing legs.) Nasser did incline barbell presses and absolutely bit it with 315. Like, on the first or second rep. Now, sure, he was travelling and not at his regular gym, but the dude was about 310 or more and clearly on a tonne of gas. By default the guy should bang out several easy reps with such a weight.
The rest of his workout was no more impressive, to say the least.