hard start

My 2004 Century, about 75K miles, developed a hard start condition when warm. Cold starting was rapid and reliably so. But after driving for a few minutes - like going to the store and parking - then returning to the car it would take 3-5 seconds of cranking to start but it would reliably start...

So I bought my 1995 Buick Roadmaster with the 350 LT1 a year ago. Problem: A few months ago it started hesitating when I accrlerate slowly. It stalled only a couple of times going through a drive-thru restaraunt. Now recently the problem is getting worse, it takes a few times turning the key...