There may be a major vacuum leak somewhere in the intake system. As for the smell of fuel, you'll have to look for leaks while the motor is idling; cracked hose, loose clamp, leaking fuel injector.
If the ignition wires look bad, they should be replaced. Buy NGK OEM type replacement wires; they are very high quality. Also if the distributor cap/rotor look marginal, replace them also with OEM parts.
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