Hard starting Dodge Ram..

Hey Guys;

I know this question has been asked a few times before but, I wanted to ask again. I have a 1995 Dodge Ram 5.2L with 82k. It has started fine until recently. Now, in the morning it cranks a lot before it starts. The rest of the day it starts right up and runs fine. This is what I have done so far:

tune up
replaced in-tank fuel pump
tested the starter relay
tested battery
added fuel additive
checked all vac. lines...:banghead: <----- this is where I am now!

Any other things I should check?

Thanks;

Jake T

Additive doesnt necessarily clean out clogs... check pressure on fuel rail, bleed air on fuel rail, replace fuel pump relays (like $5-10), check if choke is sticky... lots of possibilities