Not showing fantastic repeatability, but it can be tough working on the motor in the car.

.653 at the valve, +.020 lash = .673 gross/.428 lobe = 1.57

So, they are 1.6 rockers.

At .653 lift at the valve you are within the normal lift range of those springs.

The question now is........ Are they stiff enough to maintain proper control of the valvetrain....... At the required rpm....... With as much boost as you'll be running?

It's certainly a possibility.