88 2.5 problems

I have an 88 S10 with the 2.5 motor. Has always been hard to start (Takes a lot of cranking to get it to fire up), but a few weeks ago it got to where it is darn near impossible to keep idling. Checked EGR and PCV, both good. When you can get it driving, the engine surges at times. Hooked up a vacuum gauge, and it shows a steady needle. Will be checking codes this morning to see if anything is stored. Am thinking maybe fuel pump???

Any and all suggestions are greatly appreciated.