Pontiacs suck.

but not as bad as jap crap.

and yes I can back it up.

Welcome, your best bet to source an M90 would be a late model junk yards , I think CARS INC is a north american company that totals out insurance pay outs.

I got an LS1 w/ M6 for an old 79 camarO I had a few years back from a guy in missouri, I gotta find his info but its strictly late model GMs, from zo6's down to 3.junk f bodies and many fwd like the gt.gxp. ect.