I ran it that way for about 1.5 years on 17* with no issues.
You can always decrease the timing if 91 is what you are running.
You could also add Torco to the 91.
Yea 657 who is really good number on 20 psi. Can I run Torco with cats? It's like octane booster right? How expensive is it?
Also if I wanted to keep the EGR can I use something like this and mount it somewhere on the firewall?
http://cobraengineering.net/IAC 2 nipple.jpg