i have a 93 s10 4x4 4.3, its a w motor i need the injector or cpi number gas sat so long it almost turned to varnish(smells like it).
i drained the tank put new fuel pump/sending unit fuel filter in,I
got 60 lbs fuel pressure(went to 100 if kept cranking) fuel is not going back to the tank.

 

You can get a cpi at any parts store, rockauto.com....etc.....just gotta find one that fits your budget....here'e where I got mine over a year ago and been running fine ever since...also got the nut kit & replace the injector wires along with it.......

Central Port Fuel Injectors

 

www.injectorwarehouse.com seems to be the cheapest ones that members are finding around here.

 

thanks guys. i'll give central port fi a call