Work out warrior does not equal a high max-out on bench press. Especially, not for a QB.
I would be very shocked if Peyton is throwing up 300 or 350.
I will put money on the fact that Peyton Manning can't bench much more than 235. Being too strong can limit flexibility and work against a pocket QB.
Please see:
Crapton, Jonathon
Stephens, Ginger