318 runs real load and shakes like crazy
Sometimes you just need to run them for 1/2 hour to get the lifters pumped up and get the rings to cylinders lubed so that it can start building some compression after sitting for a long time.
Warming it up good makes the rings expand too and helps them to re-seat to the cylinder walls.
Make sure you have clean new fuel.
Check the oil level and make sure it is not over full with half gasoline. If so, change the oil and filter with new 10w30 Motor oil. Goes a long ways to help pump up the lifters and seal the piston rings with new oil in it.
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