This just started since its the rainy season here in Oregon...but if the Blazer sits for more than 2 days it is hard to start and almost seems like it is missing....and on the days it starts no problem it seems to stumble at around 2500 rpm range....lower than that its ok and higher range 3500 up its fine...I havent replaced cap and rotor yet...but I am leaning that this is the problem as I have excellent fuel pressure...one other thing is this connector is loose and was wondering if that would make a difference
http://d-tips.com/SpecialPhotos/43_7.JPG
I had intake gaskets and fuel pump replaced less than a year ago

that connector should be pretty snug. but your symptoms are classic of a cracked dist cap. make sure you only use AC delco brand when you replace it.

Thats kind of what I thought....soon as I am better I will be all over it...got a tube into my stomach till monday so no leaning on anything

yikes! well good luck with that, and let us know how it goes with the blazer.

and of course, let us know if you need any help.