I installed the Delkevic 9inch ovals can andmid pipes on my 97 BB. I hve acces to a EGA and on testing idle and cruise,i recieved these results. idle 1100 rpm 2.5% CO, at cruise or 1/3 of max rpm 4.15% CO. Now according to the EGA I should be at about 3% idle good there. But at the cruise or 1/3 max rpm it is suppose o be 1/2 to 1/4 of the idle reading. So i should be at like 1 to 1.5% not 4.1%, would this indicate that i am too rich at off idle cruise rpm? Might need to check needle setting? Anyone have any exprience using EGA, i use it at work to check forklifts for CO reading.