[Ed_Strong]

Just came back from working outside. I got the Belt Idler replaced, gave me a hard time but no biggie.
When I bought the Belt Idler, I took the battery to the Auto Parts store and had it tested. I was able to pass the first test (load test I guess) then the guy asked me if I wanted him to charge the battery, I said sure why not.
He put it to charge and 45 mins later came back to tell me the battery would not hold a charge. I brought it home put the voltmeter on it and it showed 12.54 volts... what gives?
Anyway, I went and got a new battery and replaced the old one. The van started right up and gave me no issues cranking.
But it still giving me the rough idle, and the fuel smell feels even stronger at the tailpipe. It was pretty dark outside and I look for arcing but didn't see any arcing or sparks flying (other than my brain frying). The plugs were replaced @10K miles ago with AutoLite's Double Plats by the way.

I went to take it for a ride and it started backfiring right away.

On my first post I covered what I've done before coming here for help... Air/Fuel filters, MAF cleaned, Berryman B12 in the tank, cleaned IAC/TPS sensors, etc.