spark plug issue

[302mustanglx]

hi there one again guys im having a problem with my plugs.they seem 2 be faulin out and im forse 2 get new ones every tree weeks or so. im gaping them at 54. fuel is there timing is at stock 10.The mods that i have are alumenum pullys no smog what so ever intake,fuel reg,uper and lower intake,70m trottle body and spacer,headers,hpipe,full exhaust,alumenum raydiator,short shifter,373s,control arms,dragracing springs,short shifter msd wires coil cap.the plugs that im using are motocraft not the coper ones this have become a issue because this problem.I have a nitrous kit wet to be installed.Im just wating 2 get it running right. i dont know if i shoul close the cap to like a 45. or what do u guys think.

 

[2000xp8]

Did you run the codes yet?

Doing a little spell check and proper use of punctuation/capital letters also makes your posts easier to read and understand. Doesn't have to read like a novel, it's just how your wrote it, it's hard on the eyes.

 

[DucatiRdr]

Doing a little spell check and proper use of punctuation/capital letters also makes your posts easier to read and understand. Doesn't have to read like a novel, it's just how your wrote it, it's hard on the eyes.

Holy understatement of the year. I normally just chuckle at bad spelling/grammer but this post takes the cake.

 

[87_LX_5.0]

 

[HISSIN50]

the plugs that im using are motocraft not the coper ones this have become a issue because this problem.

Try copper plugs for now.

 

[gearhead101]

i would do a compression test and see where your at. if your low on compression then that letting oil get past the rings and kill the plug. also does your car smoke at idle then clear up went you give it gas? if so this is a clear sign of oil seeping by your valve guide seals and if its really bad this will also kill your plug. if all that turns out to be good check your fuel pressure at idle it should be around 35psi. if that passes the test check your coil voltage not the power wire but the voltage going to the coil post. and also check the cap rotor for wear and build-up. hope this is some help.

 

[gearhead101]

by the way what color is the plug when pull them out white brown black wet dry etc.

 

[302mustanglx]

brown my fuel presure is at 40 psi at idle im turning it down 2day