[countrypuppy4865]

Get a spark tester to verify that you have fire. If no fire, suspect optispark or ignition module on coil. If fire is present and it won't start, try pouring a little gas into the intake through the throttle body opening. If it starts when pouring gas (not the same gas that you recently changed to), it will be a fuel problem. It could possibly be bad injectors, or it could be fuel contamination. Just a few ideas.