Sputter in first gear

[6instantaneous6]

Did some work on stock headers and decided to change spark plugs and wires. Went with Taylor wires and E3 plugs. Car then starts to sputter in first gear and I'm thinking its the plugs. Is anybody running the E3 plugs and having this problem with E3? Or could this be another issue? Part number for plugs is E3-42

 

[Clark6]

put the old plugs back in and see if it goes away if you havent chunked them already, then you will have your answer.
Id buy the regular 43's or autolite 23's if i were you. no fancy stuff.:wink:

 

[6instantaneous6]

threw old ones away...but man, these were expensive . Would still like to know any one with pos/neg feedback on them.