Truck is sucking down lots of gas. Oil smells like gas. on 1994 Chevrolet S10 Blazer

It seems to run its best first thing in the morning. My oil smells like gas. It hesitates real bad after I stop & go. Only goes 20 mph uphill. I have to lift my foot off pedal just so it can go into the next gear. I have changed the spark plugs, wires, rotor, clean out cat. convertor, replaced vacuum lines. I dont know where to go from here. Hope someone can help.

Asked by for the 1994 Chevrolet S10 Blazer
You're either getting too much fuel because the fuel pressure is too high or the injection system is delivering too much fuel.
For the first one, you'll need to check the fuel pressure, if it is too high, the pressure regulator is bad.
#2 can be many things, bad engine coolant temp sensor, bad injector, faulty wiring, bad PCM etc. I would start by check for diagnostic trouble codes, this can help point you in the right direction. Post the codes here if you need more help.
Good Luck
on my s10 blazer the fuel lines inside if the intake phlem were cracked so the fuel leaked directly into the crankcase
will this also make it miss if the pressure regulator is bad