402 Tune-up
A few months ago my Longhorn ran good but didn't have the power I would like. Lately it's running very rough, shaking and gurgling that gets worse when I give it gas. I don't have the time to tune it up myself so I'll take it to a local shop. Any suggestions on what all should be done for a good tune up?
I'll get new plugs and wires but not sure what else.
Also when I take the gas cap off it releases a lot of pressure blowing out. I've replaced the cap once already but it hasn't changed anything. Any ideas?
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