Porting like that will help a fair amount. I've done a few and it is easy if you have the tools and know what your doing. After porting I was able to drop another pulley size and dropped a pound of boost stack. This just means the air was moving threw faster and not backing up. My suggestion if your going to do this is pick up another LIM and supercharger, port those and do a top swap when ready. I seem to remember it'* about $60 or so in gaskets to do the job. A set of LIM gaskets, a supercharger gasket, 2 O rings and a throttle body gasket. Takes 3 or 4 hours to finish the job.
SAVING THE WORLD ONE BONNEVILLE AT A TIME
1997,1998,2000,2005 year confused Bonneville SSExi. Stock? ish.
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