[Fot] TR4 Spark Plugs

[Scott Janzen]

Look in the Pegasus catalog- probably on line too. They have a great chart for champion spark plugs, showing all the models ranked hot to cold. Was literally just looking at it this afternoon.

Sent from my iPhone

> On Apr 27, 2018, at 2:24 PM, Dan Forgey via Fot <fot at autox.team.net> wrote:
> 
> I've got a TR4 w/.100 off the head and Kastner D cam and headers here in Colorado (just over 5,000 ft.).  I'm running Champion L87YC plugs and am thinking of trying something colder as sometimes there is pinging when I'm not on it.  I see Champion makes an L86C but I have no idea how much colder this compared to the L87YC.   Anyone have any input?
> 
> Thanks,
> 
> Dan Forgey 
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