Redressing a controversial subject...

Years ago on a Subaru Legacy forum about the Legacy Touring Wagon's with the H4 2.2 Turbo a few members were turning up the boost by almost twice. They were having issues of the cars just 'Laying Over' when it came up on boost. Over 200 replies from so many "Experts". They tried changing the Subaru coil pack, a 4 output coil, to a Mopar Neon's coil pack as they had a higher KV rating. It helped just slightly but not the fix.

Since the coil pack fires #1 and #4 together and #2 and #3 together the spark was trying to jump two 0.041" gaps and the high (boosted) compression ratio was blowing out the spark kernal. So after 200 replies and three members suggesting to just close up the sparkplug gaps from 0.041 to 0.035, POOF problems solved.

I solved mine by running 4 Kawasaki KZ1300 motorcycle coils fried by a MSD DIS-4 and gaps at 0.055"

If I were wanting to run a 300++ shot of NOS, I'd just do a Crank Trigger box firing 4 GM style 'Dual' coils.