I never heard of a carburated 500. Therefore no rejetting is possible. If you can't tell by looking at it you really shouldn't be fooling with it. I have the same engine. You won't be able to tell any difference in power without the cat anyway, unless it was clogged.

How do you edit the subject line anyway?

__________________
Steve
1985 Mercedes 500SL Euro (Gray market)
1995 BMW 520i Euro (Gray market)
1992 BMW 525it Wagon
1994 Honda Del Sol Si