Of course upping the boost will help a little at 18 or 19psi, with more octane...but at what risk? Stock turbos give up at 16psi...running it anymore would be asking for trouble...of course you'll get higher hp numbers..but really no use since it won't be used on the streets or track.
CarloZ
: about where you should be for your mods. If you tune it and add mroe fuel you can make better se of the dual pop and make more power. Next time tune it and then run race gas at 18-19 PSI, you'll see much better results.