The clutch fan will slip some and give less cooling than a fixed fan. Plus, not all clutch fans are created equal - many believe the "standard duty" aftermarket clutches leave a lot on the table. "Heavy Duty" or MOPAR work best.

With a 22" radiator, you may be cutting it close to start with cooling a 440. A really good 3 or 4 row brass will do it as well as a high capacity aftermarket aluminum but the factory usually put 26" on a 440.

I'd try to return the clutch fan and exchange for a "heavy duty" or just put the fixed fan back on. Making sure you have enough timing helps also because the engine can run more efficiently and produce less waste heat.

I also like to see temps under 200 when rolling. If it creeps up at a long stop light to 205 or 210 then drops right back down when you get moving, that's OK.

My