I guess the plugs I'm using in my (fiero) 3800 SC swap are the wrong ones. They are Champion RS14YC6 (Champion 13 RS14YC6 Nickel Spark Plug
SKU: #RS14YC6
ITEM: # CHA13 )
If the rain stops this weekend i'll take them out.
My question is what's the down side of using (economy) plugs? When I up grade Should I notice any difference? Based on what I read on here I'll be going to Autolite 104.
My mods: 3.5 pulley, free flow exhaust with resonator tips, air intake in rear fender.
Any feedback would be great!
