Hyd Roller vs Hyd Flat tappet on SM heads

PRH said

I highly doubt either of those head packages come with the springs installed at 1.900”.
I’m not saying it’s impossible, just not likely.

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I run the SM, bought them bare, and then purchase the springs for a hydraulic roller, and run them with my solid flat tappet, they came in at 1.90 installed height, and 400lbs open