How do you change out the spark plugs on a 91 lincoln continental?

This is a v 6 and we cant seem to get to any of the spark plugs. I called to see how much it would cost for a shop to do it and it was 86 dollars. Surly there is a way to get these in ourselves. Please help, thanks.How do you change out the spark plugs on a 91 lincoln continental?If you can't reach the plugs from the top of the engine, try coming in from the sides (through the wheel well openings) or from underneath.

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