> Chris Bridge is wondering about compression ratios:
>
> An additional factor you may want to consider in selecting your compression
> ratio is the altitude where you live. If you are living several thousand
> feet above sea level (you are in AZ, right) the compression ratio you 
> mentioned may be appropriate since you are starting with less atmospheric
> pressure. You will probably need to run premium gas and listen carefully
> for pinging on trips to sea level destinations though.
>

No, actually I'm in SW Virginia at around 2000ft.
  Chris Bridge
  
  Currently building an engine for a ''71 Westy (Sportsmobile?)
  E-mail cbridge@vt.edu