85 chevy wont start

[jay741]

hi guys ive come upon this site a little while ago (great site) but never posted before. i have a problem with my 85 chevy truck not starting. at first we thought it was a frozen fuel line but after putting some stuff in the gas cant remember name and today was above freezing i tried to start itup but nothing i could smell the gas under the hood so its getting to the carbreter and the engine turns over but no spark is getting to the plugs i took one off. the truck is an 85 2 wheel drive with a 305 4 barrel carb th-350 tranny and a 10 bolt rear end it was made in july of 85 if that helps any. any help would be appricated thanks