Spark plugs

[Tony Shoaff]

Has anybody used Autolight AR3932 plugs? I am running stock heads with 27lbs. of boost.

 

[QUIP'6']

i just started running ngk ur5's and they run better than the autolites i was impressed about idle and wot

 

[toofastforyou]

Tony, I'm using Autolite AR 3934's on my car and they've been ok all year until a few weeks ago when the car developped a missing problem under load. After checking compression, replacing the coil pack and module with no results, I replaced all 6 plugs and it seems ok now, BUT I only drove it 2-3 miles since...I still think they're good plugs...I just had some bad luck I guess...

Claude

 

[re-evaluating]

plugs

Has anybody used Autolight AR3932 plugs? I am running stock heads with 27lbs. of boost.

Tony

Give me a call.

 

[Tony Shoaff]

I can take them back. The only reason I posted this is because nobody has mentioned using these plugs? What is the correct plug number? I'm glad you read this post because I was going to use them. I finished 5th Sunday out of 45 cars. 6.71@104.5 93.3 Deg. air was the coolest run made.

 

[Nick Micale]

Not right.......

Has anybody used Autolight AR3932 plugs? I am running stock heads with 27lbs. of boost.

The AR 3932 are very cold racing plug with a 3/4" reach which is NOT the right plug for a Buick iron head. The alum heads use long reach plugs like these.

 

[Tony Shoaff]

What do you recommend Nick?

 

[toofastforyou]

Oops...Nick is right...I forgot to mention that I have M&A aluminium heads on my car...That's why I use these Autolite AR 3934 plugs which were initially put on my car by Eric at Dynotech.
For stock cast iron heads, I think a good choice would be some AC R43TS...

Claude