Plug choice?
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,163
Likes: 1
From: Indiana
Plug choice?
I have an old school, 70 LT-1 built into a 383 stroker in my 63, iron 461x heads, mechanical dizzy (no vac advance), 750 Holley vacuum secondaries, no idea on cam (idles well at 850 pulling 13"hg, so not too radical). I am thinking I might want to change to a hotter plug, now using a Autolite 85 and they are getting fouled. I drive this car on the street, some times drive it hard, but not constant. Thinking of changing to an AR25 or possibly an AR3925. Any ideas on plugs for this set up? As always, your assistance is greatly appreciated, and worth 
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