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.