Fixed cooling fans for a 340

Not necessarily looking for max cooling effect from just the fan, more of a max cooling effect for the entire system especially while idling during a show or cruise. Currently I have the MP 5 blade with Hayden clutch which is fine for all driving conditions except it gets pretty hot during extended idle and cruising during shows. It’s mostly a show car so I am hoping to get more air at slow speeds.

Thanks. This situation could be cured with adjusting the tune. Advancing the timing and/or adding more fuel at idle can really help.

Case in point, my dads 440 in his Coronet. Cruising down the free way it would slowly creep up in temp. Punch it and it would cool down. Idle would slowly creep up too. He added 2 more deg to initial timing and kicked and enriched the idle a little and a time and got it to go away.