[El Sol Infinito]

I installed the Ignitor II in my '64 and it really works great... if you don't get a defective unit. The first one I got was defective.
I would also recommend the Flame Thrower coil for maximum benefit and also some high-temp spark plugs (I use the Split Fires).
The increase in power is very noticeable and the engine seems to run smoother as well.