sceptre Posted January 15, 2009 Report Share Posted January 15, 2009 hey guys, picked up my new AFE intake today and when I did the guy behind the counter was telling me that I should drop the heat of my plugs by a step and drop the gap on them by 1 thou. He said truck will run much better and be much better on gas by doing this. Has anyone here ever heard of this or is it crap? Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted January 15, 2009 Report Share Posted January 15, 2009 hey guys, picked up my new AFE intake today and when I did the guy behind the counter was telling me that I should drop the heat of my plugs by a step and drop the gap on them by 1 thou. He said truck will run much better and be much better on gas by doing this. Has anyone here ever heard of this or is it crap? Don't listen to him, the only reason you would need to drop down a step in the heat range of your plugs is if your are running FI(blower/turbo) or are spraying Nitrous. I would stick with the recommended gap by GM also......... Quote Link to comment Share on other sites More sharing options...
sceptre Posted January 15, 2009 Author Report Share Posted January 15, 2009 he's tellin me i'll pick up 50 miles per tank at least I agree, I dont see any reason to screw with it, but I just wanted to see if anyone else had heard such a thing Quote Link to comment Share on other sites More sharing options...
IndySilveradoSS Posted January 24, 2009 Report Share Posted January 24, 2009 sounds liek that guy is full of sh*t and just tryin to sell you plugs. Quote Link to comment Share on other sites More sharing options...
sierra ss Posted January 25, 2009 Report Share Posted January 25, 2009 Try the E3 plugs. I put mine in Thursday and love them so far. Truck runs better, revs a lil quicker and seems to be getting better mpg. I'll get some numbers this week. Quote Link to comment Share on other sites More sharing options...
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