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Mr 5 0 · 06-02-2002, 08:33 PM

Use Autolight #25 spark plugs. Gap at .055. Change every 12,000 -15,000 miles.

Install high quality plug wires (your choice). Change every three years.

Install a brass-terminal cap and new rotor every 15,000 miles.

Change the PCV valve (and screen ) and the gas filter every 15 ,000 - 20,000 miles.

Clean and re-oil the K&N filter every six months or 6,000 miles. Ignore the insane cleaning intervals the K&N instructions give you (50,000 miles). A K&N tune-up kit is cheap and cleaning is easy.

Play around with timing, especially if you're at a track where you can compare your et. 14 degrees initial is usually the optimal timing advance on a near-stock 5.0 (what I run on mine) but sometimes you can go to 16 with better results or maybe 12 degrees will run even better. Experiment.

Always watch your tire inflation. Fill to just under the max pressure and check it weekly (on cool tires).

06-02-2002, 08:33 PM	#2
Mr 5 0 Conservative Individualist Join Date: May 1997 Location: Wherever I need to be Posts: 7,487	Mustang tuning and maintenance Use Autolight #25 spark plugs. Gap at .055. Change every 12,000 -15,000 miles. Install high quality plug wires (your choice). Change every three years. Install a brass-terminal cap and new rotor every 15,000 miles. Change the PCV valve (and screen ) and the gas filter every 15 ,000 - 20,000 miles. Clean and re-oil the K&N filter every six months or 6,000 miles. Ignore the insane cleaning intervals the K&N instructions give you (50,000 miles). A K&N tune-up kit is cheap and cleaning is easy. Play around with timing, especially if you're at a track where you can compare your et. 14 degrees initial is usually the optimal timing advance on a near-stock 5.0 (what I run on mine) but sometimes you can go to 16 with better results or maybe 12 degrees will run even better. Experiment. Always watch your tire inflation. Fill to just under the max pressure and check it weekly (on cool tires).