240z overheating at idle in traffic lights and intersections

[Johnny wick]

Just checked out this video:

This guy addresses my problem as fuel percolation and he is building a heat shield:

https://www.youtube.com/watch?v=AW_8LggHv8A

Questions: Isnt the Factory heat shield that my car came with enough? I also noticed my Pertronix 40511 coil is getting as hot as hell. You arent able to hold it in your hand for more than 1 second. My car idle becomes rough when the coil gets as described.

https://www.youtube.com/watch?v=F6wGuYBiRLw

ANyone?? COmmon sense???

 

[Zed Head]

Is it still overheating?

[Johnny wick]

It still overheats in heavy traffic conditions. I read that this L Series engine with carbs suffer from this and that at idle plugs get sooty. Apparently the only remedy is to install electric pusher fans. But which one would you recommend?