Skip White dizzy - local replacement of cap

[don t. - 72gmc]

Hi All.

On Tuesday, I will have a need for my 70 to be on the road or im gonna have to rent a car. I've got a spark problem. Good blue-white spark from the coil, orange-white to the plugs. Im thinking cap and rotor need to be R&R'ed. I've got this Skip White dizzy..... http://www.skipwhiteperformance.com/...px?Item=6701-R

I went to Napa, but they were very busy and we quit looking after 5 minutes.
Does anyone know what year/make the cap and rotor? It looks like a Ford cap, but I got no clue besides it aint stock.

Thanks much....don t. ....