camshaft for 225

I have the following K 220/220 solid energy flat chamber K kit for Chrysler 170-225 6 cylinders, I have larger valves (250 chevy, I don't remember the measurement) I have 9.5: 1 compression, 2 Holley 36-36 barrels. Pistons, vines, screws, metals ..... standard. How many RPM maximum? and with what camshaft ... I don't know if my query is understood?

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Thanks for the motor photo’s, very clean. Do you have a rear exhaust manifold on the motor that matches the front one shown? Are those easy to get in Argentina ? If so you could probably sell them to folks here.
Not wanting to side track your cam question, but that style of exhaust manifold is really rare up here.
Also, it looks like there is a line that feeds hot engine coolant to the intake manifold to warm it, can you post a photo of that?
Thanks.