1993 gmc 4.3 cmfi running really rich

I'm working on a 93 4.3 cmfi

the problem is that it is flooding the passenger side of the engine
fuel press. is o.k.
spark is ok
no codes on scanner and injector pulse width at idle is about 1.3ms
starting to think that problem is in the injector assembly
appreciate any help

thanx
found the problem. it was a leak in the diaphram of the fuel pressure regulator.
have no choice but to use aftermarket because of oem doesn't sell pressure regulator by itself!!!

I'm working on a 93 4.3 cmfi

the problem is that it is flooding the passenger side of the engine
fuel press. is o.k.
spark is ok
no codes on scanner and injector pulse width at idle is about 1.3ms
starting to think that problem is in the injector assembly
appreciate any help

thanx

Get a fuel pressure gauge on it and watch for a fast leak down on the fuel pressure gauge when engine is shut off.
Also give us the engine cranking and engine running pressure.