Plugs

[P-Money]

496, 8-71, 8lbs of boost, intercooled, dual 750s, yadda, yadda, yadda
What should I run for spark plugs? Curious to see what others are running. Thanks

[P-Money]

Right now it has AC Delco R44t plugs in it. Think this is too hot a plug?

[502 JET]

On my stock 450 hp 8.75 to 1 compression 502 GM recommends AC MR43T.The plugs you have are one step hotter than that.In a racing/high performance application they recommend going with a step or two colder.
Are you having problems with your plugs?How are they burning?

[502 JET]

Here is a good link on reading your spark plugs.http://www.dansmc.com/Spark_Plugs/Sp...s_catalog.html

[502 JET]

There are some good spark plug links at the top of the page in the Gear Heads Sticky tech links.

[lucky]

for a minute i thougt this would be a popular thread , Reguarding HAIR PLUGS

[J540]

496, 8-71, 8lbs of boost, intercooled, dual 750s, yadda, yadda, yadda
What should I run for spark plugs? Curious to see what others are running. Thanks
Hey Man hows it going. Call me sometime.
Run an NGK R5671A-9 Very easy to read, call me i'll tell you how

[P-Money]

Hey Man hows it going. Call me sometime.
Well looks whose back! :rollside:

[DEL51]

I would call NGK. If your uncertain. They have excellant factory reps. I would run an NGK-9 and make sure you tell them the type of heads you have. I run Merlin Iron heads and they need a longer reach.Head type is important. You can cross referance the NGK plugs to Autolite. They are good also.

[P-Money]

Heads are 990s