[Christ]

umm... I'm confused... 90 Civic should be a D series motor... D series motor, all the dizzy's are interchangeable, with the exception of putting a DPFI diz on a MPFI motor... you can't do that w/o adding a sensor... CPS I believe... but the diz casing and housing are indeed the same... internal parts are all the same, and from what I remember, you can only install the diz backwards if you really ram it in there, and you CAN'T put it in 10* off... the only timing that could be 10* off would be the cam... and changing the diz won't affect the cam timing at all...

Yep, I'd say bad gas too. Give it some beano, and fill the tank back up.