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View Full Version : What plug for my 347?


tonylittell
11-08-2009, 01:48 PM
Im a little confused on a set up i have.

it is a 347 stroker fro T&L engines that is 10 to 1 with 190cc pro 1 heads. they wont give me the specs of the cam so i cant help you there.

I bought the car used and i dont know what plugs to put back in the engine.
the engine was running bad so i pulled the plugs and they are fouled. they are autolite ar13 plugs

t&l says to run a autolite ar3922 and Dart says on the specs to use an autolite ar3933.

with three different plugs i dont know where to start.

any help would be greatly appreciated

lun40119
11-09-2009, 02:45 AM
At that compression I would go a little hotter. JMO.

want-a-be
11-09-2009, 11:29 PM
What fouled the plugs? Oil or fuel?

Don

Awesome Bill
11-15-2009, 03:21 PM
someone must have taken a stupid pill to tell you that plug. AR3935 Autolite or the #9 NGK