Anytime you can increase the output of the ignition, that is better suited for a turbo app.

When running higher boost, you need to close the spark plug gap.

Don't even think about running a wide gap like .045" +, it will snuff out that spark.

A distributor cap w/brass inserts helps, or is that copper?

I used the Holley blue, or was it the red pump that pumps approx. 20 PSI? So I ran 9-10 psi boost pressure, w/the Holley pump.
This was it, the blue one is higher pressure, http://www.summitracing.com/parts/hly-12-802-1/overview/
I just shimmed the spring a bit for more output.

With the Holley blue pump output, you could only go up to 10 psi of boost pressure approx.

This one would be better, but the output is just a bit more pressure 16 psi but more volume.
http://www.summitracing.com/parts/hly-12-150/overview/

A little pricey, 18 psi pump, but could run up to about 13 PSI of boost. http://www.summitracing.com/parts/maa-5250/overview/

MBHD


12 port SDS EFI