Thanks everyone for the news about the air filter, but now since I heard that NGK would be a waste of money, what do you guys suggest are the best spark plugs to build up a racing truck? I want ones that would be good for horse power.

 

What ignition system are you going to be running? What heads? CR?

 

I've never had a problem with good ole Champions or Motorcraft. Wouldn't run AC's if they were given to me. Had too many failures with them.

 

Like I said, If you run a Hyfire Box.... NGK's work very well and you have a wider variety of heat ranges to chose from. I wouldn't say that they are junk, its all in your set-up/ combo of parts used!

 

Sure but they will not improve anything which makes them a waste of money.

 

Not true and here is why. I love Autolites but then I decided to play around with different brands of plugs (AC, Champions and so on). I found that the NGK's would last 3x as long when compared to Autolites! They may not improve your performance but spark plug life! Worth the extra $ to do it. JMHO

 

Yep, last 3X as long and cost 5X as much. That is poor business where I com from. I've probably installed in the neighborhood of 10,000 NGK plug and dollar for dollar I will stay with the Champions (with which I set 3 speed records and won 2 National Championships and was not sponsored by them either).

 

They dont cost 5x as much. You may not like them and thats fine. Try a $1.58 for NGK plugs and $1.49 for Autolites. WOW $.09 more a plug!

NGK AP8FS 18mm x 1" Hex Projected Tip Spark Plug Stock# 2227

Autolite 124 Copper Core Spark Plug

 

If you are talkin' the standard NGK plugs, I call on them lasting longer.

 

They do! Been there and done that!

 

I've put thousands of NGK plug in Ford and Chebby engines and never one had them last longer than the AC's, Champion's or Motorcraft/Autolite.

 

I don't disagree with ya for the most part BUT with a Hyfire Box on an FE... NGK's are hard to beat. Otherwise, if your not running a Hot ignition (Hyfire Box on an FE)... The others work better then the NGK's do. JMHO

 

Also the added bonus is, they have a wider heat range of plugs to play with and the other brands for 18mm dont! Unless you run aftermarket heads with 14mm is a different story all together.... JMHO

 

Even in my race 428CJ I never had to run anything colder than a Champion F9Y. So that is not a plus for a street machine.

 

I tried the NGK's AP9FS on my 11to1 Solid Roller 428 as a daily driver... A little too cold, so I jumped up to the AP8FS and it was much happier with that! LOL