Boosting AC coldness and air flow

[EdwardSams]

About five years ago, we installed a vintage air system on my 1970 and it works pretty well.

Unfortunately, for where I live, there is often a lot of traffic which means we’re running at idle and when doing so the air conditioning is not as powerful and doesn’t stay as cold.

Right now I have a clutch fan, would replacing that with electric fans solve this issue? if so, based on the research I’ve done I apparently might be opening a whole new can of worms by making that conversion.

All guidance welcome. Thanks.

Ps, I’m running a sbc350.

[PbFut]

Having a Champion 4row and upgraded fans I can say I am in the process of going back to original type big block setup. I have spent a lot of time and money on the electric setup only to find it less reliable and not any better than a properly set up BB system.

[dmjlambert]

I have heard (but not yet done anything on my truck about it) that if you weatherstrip all around the condenser to block off the ability of any air to get to the radiator without going through the condenser first, it is supposed to help. Also making sure you have a good seal around the fan shroud so no air could get sucked into a space between radiator and shroud is supposed to help. The idea is make sure all the air being moved by the fan is air that originates in front of the condenser. Some people add a pusher fan in front of the condenser (electric).