A wide band air/fuel gauge will tell you gobs about your state of tune. I have one on my 403, carb. Another on a 403 EFI.
Bruce Roe 6 Mar 2006 "Dave Wyatt" <[EMAIL PROTECTED]> writes: > Most of our Oldmobiles are old enough to be exempt from most > emmission laws, > making modifications OK. Some have to pass a sniff test, but the > E85 should > fly through that. Finding someone capable of modifying a > carburetor, or > even recognizing one, may be the tough part. It will take a real > mechanic > like a racer to re-jet one for E85, since the current batch of so > called > "techs," can do little more than plug in a computer and swap parts. > > > > Dave Wyatt

