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: Best Spark Plug for 454 chevy? Travis69chevelle Jun 6th, 07, 7:18 PM Hey guys i wondering if you would know the best proven spark plug by all you 454 drivers out there. I have a 69 chevelle with the 454. Right now i have autolite coppers in their. Let me know what you think. Thanks pdq67 Jun 6th, 07, 8:40 PM I was just going to say that all my SB's liked FORD plugs!! pdq67 purple66bu Jun 6th, 07, 8:50 PM Autolites and NGK's are good plugs..really depends on the combination Bob West Jun 6th, 07, 9:33 PM I used to run R43T or R44T's in the iron heads, I have since switched to NGK's in the race rites. Travis69chevelle Jun 6th, 07, 9:46 PM I just have an hei dist and taylor wires 8.0 mm wires Harold Sutton Jun 7th, 07, 12:56 AM Autolites. BACK FROM THE DEAD Jun 7th, 07, 3:30 AM autolites here too. norvalwilhelm Jun 7th, 07, 8:23 AM I ran Accel #276 for years without a problem. If you need a shorter plug the Accel #276S is slightly shorter for header clearance. The #274 is one step colder but I always ran the #276 with about .045 gap. dreis454 Jun 7th, 07, 8:51 AM autolite platinum pdq67 Jun 7th, 07, 8:34 PM And Taylor "REAL WIRE" wires to and ta heck w/ the radio!! pdq67 Bob West Jun 7th, 07, 9:51 PM I'm in the 10's with a radio!!! | ||