fm3 coded 340 auto duster resto...............

My bad ... I didn't see the R11 at first look ; so used to seeing it on the top-row of codes I guess .

As far as the FM3 goes : maybe it was subjective to the carline . The few FM3's I've seen were "B" & "E" bodies ; and in those instances , "999" was on the tag .
The last 'real' FM3 I saw was a '71 Challenger R/T 383 Magnum . It had "999" (which could mean anything , of course) , plus about 5 repaints.
The car's owner and I removed the back seat and found the build sheet : pay dirt "FM3" .
This was back in 1992 .

I've always wondered why Chrysler didn't promote this colour better , especially with the fledgling "N.O.W." movement happening ; could've boosted sales to all those *wince* Gloria Allred *wince* types out there !

Personally , I'd like to see another 340 between those Shear Panels. Maybe even a 390" stroker , backed by that column-shift 727 .

Good luck with your resto :cheers: