slant 6 rebuild and upgrade list

As for the CR and boost, the fact that a car will run 12 seconds is not going to mean it will be 'snappy' on the street. That is the point that is being made; at the strip, you have already revved up and gotten the turbo spooled before ever dropping the hammer, so the boost and power is there. On the street, that is not going to be the case very often and the turbo lag is what if going to make it 'un-snappy'.

Having said that, there are things that can be done.
- Push the CR up in the low 8's IMHO; in my rally building engine experience, running in the 9 range and any boost at all in the 10+psi range requires some pretty good tuning; rally cars are now running 10+:1 SCR and gobs of boost, but they are all HIGHLY engineered with tons of $$ invested and special fuels, EFI of course, etc. I have rallied 14-15 psi boost on a true 8.2 SCR with just so-so tuning and premium. But I don't view the /6 bottom end to be particularly strong so personally would be cautious.
- Look long and hard at the turbos available and be ready to spend some extra for the right one. The spool up can be very greatly modified by the exhaust impeller design. My last Super 16G (on a Mitsu 2.6L) is already turning and 'burbling' at idle; the spool-up is a ton better than typical.

BTW, the published CR's are not accurate so don't assume that number is where you are starting.

BTW#2, add at least 2.5" or even 3" exhaust to your list to help the turbo.

Should be interesting.