Originally Posted by
Coheed I have run 20psi+ with factory ignition in good working order. Ignition is the least of your worries. Make sure you have the fuel to boost her higher.
You must have been replying to DxPxE's mention of the need for MSD after 17-18 psi. Yah, factory ignition seems to be good for tons and tons of boost. I don't really know of anyone having to replace it with something better.
Maybe DxPxE was talking about an MSG ignition timing module. If so, he's on the right path.