Spark Plugs


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By customline3859 - 4 Years Ago
Just wondering what spark plugs you would suggest for a mild street engine. Here is my setup, I will be adding an AOD transmission for better highway manners. 
292 .080 over (304)
Fenton Tri Power intake
mild cylinder head porting. (gasket matching ecz-g heads)
red's headers
pertronix ignition and coil
isky 301333 cam 
  • Valve Lift Int/Ext. 0.448
  • Valve Lash Hot Int/Ext. 0.020
  • ADV Duration Int/Ext. 270
  • 0.050 Duration Int/Ext. 228
  • Lobe Center 112
By Florida_Phil - 4 Years Ago
My 292 +.060" has the same heads, cam and ignition.   I use Autolite #46s.  Never had a problem.
By customline3859 - 4 Years Ago
Excellent. I'll go with that. How does yours run? I'm curious what to expect.
By Florida_Phil - 4 Years Ago
customline3859 (1/20/2020)
Excellent. I'll go with that. How does yours run? I'm curious what to expect.


It runs great.  I love that cam.  Great mid range torque.  My car has a manual transmission with O/D and a 4.11 gear.  The 465 cfm Holley carb is perfect for the street.  Idles at 800 rpm with just the right lope.  You are not going to run down any Hemi Challengers, but it has plenty of grunt.