Thanks Jay, that's the kind of information I like hearing. I actually pulled the entire battery out, and the air filter just so I'd have some elbow room. I'll keep my eye on the mileage for the next couple of tanks to see if the mpg actually does improve. Now, to go and reground my MAF... finally . Of course, I'll need to "re-search" the ground points on the manifold, first. Thanks again, Mark