How does a solid roller cam act vs solid flat tappet

MOPARMAGA said

Yeah I thought that you can optimize a particular engine build by choosing the right rod ratio. It's said that the shorter rod draws in more fuel & air faster when the piston is on "suck" & a longer rod vice versa gets it out faster. But All that seems to be a cam could be ground to be perfect for any particular r.r. also it's said big ports are good for the short rod & and small for longer rods. That part makes sense.
But I'm no expert.

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Rod ratio plays a big part when the engine is induction limited. And I say anything with a 4 inch stroke and less than a W2 head is induction limited. Even a 3.79 stroke puts a load on the W2 head. And the single 4 intake.

Chrylser did a tom of testing on 2V carb stuff and found power. Too bad they didn’t test what a stroker does to the induction system.

And I’ll add this. If your cam grinder doesn’t take into account r/s ratio you need another cam grinder.