Sure wish I knew what fan pulley he has

Hi everybody:

My car cools just fine going down the HWY and it's about the same as this 2.02 J heads with a 750 holley 185' down the HYW but when you stop it shoots up I think the main problem is that the fan pulley is too big and basically Dutch windmills around at idle. I have a Northern radiator and got a nice shroud made for it. One of the guys at the shop said maybe he could get a chevy one to work on it?



This one is mine and one more thing. Is coper actually better?

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