1995 Chevy Blazer Still Won't Start....

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1995 Chevy Blazer V6 Four Wheel Drive Automatic 200000 miles

Ok so check this out I went ahead & checked to see if I was getting spark. In the prossess of doing this I checked to see if the injectors were spraying fuel. I cranked over the engine for about 10 sec (Yes there was spark) The driver side plugs (1 3 5) were bone dry, & the passenger side (2 4 6) were somewhat wet. I noticed the smell from fuel was very faint. This tells me that my problem is in the upper plenum. So I guess my Question is What would be the cause of the passenger half of the block to recive work & not the drivers side half? Or if anyone has any input on what to do next would be great! Thanks Nick