>> All the 90 and 91 90 and Coupe Quattro's in the US were 20 valve. >All of them? I thought 20 valve was an option on 90's in 90 and/or 91. Yes, all of them. The '90 & '91 90q are all 20V, the 90 FWD are all 10V. (only applies to USA, of course.) Eric Renneisen '90 CQ 20V - my 'racing-iron' ;^) Chattanooga, TN