Bigger valves in 302 heads?

There are a couple reasons I like the larger valve (1.88s). As Dave says - there's not much shrouding, it allows me to place the intake seat at the point furthest out into the chamber because it uses fresh metal, and in terms of low lift flow it adds some there. With the cam you have i don't agree that there will be any issues with "too big" killing torque even with the as-cast pushrod pinch. Another very easy way to get another 10-15cfm throughout the lift range is a 30° back cut on the intake valve if you are runningn a stock type valve. This is already done if you're running a performance stainless valve.
That being said - whether or not you can feel any difference is totally up in the air. I always go with larger valves - so I have no back-to-back comparisons. I just have results of the larger ones to go by.