Close



Results 1 to 4 of 4
  1. #1
    FEP Senior Member ddx77's Avatar
    Join Date
    Jul 2011
    Location
    Fort Lauderdale, FL
    Posts
    636

    Default 1985 GT with a 351w, need some spark plug advice

    So I have a 351w in my 85GT, With World Aluminum ported heads, Erson 1.7 roller rockers, 1.8 intake, 1.6 exhaust, Custom grind Erson cam (not sure spec.), .20 overbore, Keith Black pistons (9.25:1 comp),

    Can someone help me figure out the correct spark plug I should be running, NGK preferably but I will take any recommendation.

    The car is running really rough and I have a feeling the wrong plugs are in the car.

    Thank you,

    Drew

  2. #2
    FEP Power Member 4-barrel Mike's Avatar
    Join Date
    Apr 2010
    Location
    Portland, Oregon
    Posts
    1,966

    Default

    A shot it the dark: got the correct firing order - 1-3-7-2-6-5-4-8?

    Mike

  3. #3
    FEP Senior Member ddx77's Avatar
    Join Date
    Jul 2011
    Location
    Fort Lauderdale, FL
    Posts
    636

    Default

    I believe I do, but I will double check it again. It wouldn't surprise me if I don't, thank you!

    Quote Originally Posted by 4-barrel Mike View Post
    A shot it the dark: got the correct firing order - 1-3-7-2-6-5-4-8?

    Mike

  4. #4
    FEP Senior Member ddx77's Avatar
    Join Date
    Jul 2011
    Location
    Fort Lauderdale, FL
    Posts
    636

    Default

    Firing order checked out, found the plug specs on the head website. Changed them and the car is running awesome!

    Thank you.
    Attached Images Attached Images  

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •