Who makes the best spark plugs in your guys opinion (autolite, bosch, NGK, etc...)? Im just looking to buy some new ones and wanna get some ideas. Also what should I set the gap at, I think it calls for .54 but not sure? Ive got a 95 gt with a msd tfi coil and distributor.

 

anything that is copper and run the stock heat rang. I would recomend the NGk TR-55 as i love NGK they are cheap and most parts store shave them in stock.

 

I always hear everyone talking about platinum, are those anygood? Or should I just get some copper ones?

 

platinum is good for mileage

copper is better for power as copper is a better conductor of electricity.

 

My cars been detonating slightly also so i was wondering if i should go to a colder plug?? I have bosch platinums in it right now, if that matters. Could you also give me some part numbers on the plugs, or direct me to where i can find them?? Thanks.

 

i highly doubt that a spark plug is causeing you to detonate with your mods listed.
If i was you i would grab some NGK TR-55 part number is 3951.

 

Thanks for the part number...I know the plugs are not causing the detonation, I just figured it might calm it down a little till i figure out whats actually causing it.

 

That part you listed above is for the cobra model....so is there a reason you say to get those instead of the 6945s?? Thanks again and sorry for asking so many dumb questions.

 

thats the part number and should work regardless of its a 5.0 4.6 etc... kinda how the tr6 works in alot of different cars.