6.2 hard start

[86c20]

ok i am really starting to to hate my truck. finely got it running good looking good and no elec problems. now the dam thing will not start in the morning at all. she starts good in the cold with just the plugs. here is what it takes to get her going after sitting all night. crank it alll dam day till that batts are dead or give it a shot of ether witch i dont like. and now it is getting worse buy the minute. it was fine after it was going for the day now after 2 hours of sitting she will start but takes a good 15 sec of cranking. plugs are working fine i tryed changing the filter and that didnt help at all. when it wont start i am geting fuel at the injectors not alot but dont know what should be there. one thing i am thinking is the mechanical fuel pump is bad so its not holding the prime?. this motor has always started fine even down in the single digets. once she is going seems to run fine. is ther any thing i should check? this is the thierd time this truck has f**ked up before a trip and this trip that i am going on nect wensday is 600 miles to get a nother truck for parts. HELP lol thanks, mike