spark plug advise

[kru510]

getting some bogging and about to do a tune up. What spark plug would you all recommend. I am running a vortech t-trim @10lbs with 55lb injectors. This is a 99 cobra with an termi shortblock and fms heads. I might want to up the boost to 15lbs in the future..thx

 

[Digital]

TR6 or TR7IX depending on your budget and how much your car goes through plugs.

 

[99cobra09]

I just bought some plugs yesterday for my 99 procharged cobra on 15lbs of boost, i got some ngk's TR6's. Ill probably be gapping them at .032

 

[HandsomeRob]

I use TR6's also gapped at 32-34

 

[crazycarlo]

I had TR6-s in my car before however when I had it tuned a week ago my tuner put BR's in it and she runs great. So your getting bogging. Do you have gears? Id imagine the compression of the termi shortblock isnt to great for the centri. Response wise I mean.

 

[01yellercobra]

I ran Autolite 103's for a while. But tried the NGK TR6's because a buddy swore by them. The car idled better and the part throttle improved quite a bit. Mine are gapped at .030", but I think it's a little tight for the set up. I just haven't pulled them and regapped them.