For the record, I like the MP620 cam in something with small-ish heads, a lot of stall, a car thats not too heavy, 1.5 rockers......and at least 13:1cr.
As measured, it's 283@.050....... So it's a big cam.
That being said, there's almost always going to be something I like better for any given combination.

I generally prefer some upper rpm stability over super fast ramps, unless there is a "need" to get every last HP out of the build.

For the OP's proposed combo, I'd use something around 270@.050, and stable lobes where you could maintain decent valvetrain control to 7000 or so, running 1.6 rockers with "normal" spring loads(150/375-400).
Lift with 1.6's would be low/mid-.600's

A fast rate .904 cam would likely make a few hp more, but will be a bit tougher on parts.