Tuned port injection
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Junior Member
Joined: Feb 2002
Posts: 7
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From: Baltimore
Tuned port injection
I just swapped an LT1 in an 87 Monte SS .I know this is an F body site but the engine did come out of a 94 Trans Am. I changed the plugs the other day and all the plugs on the passenger side were black.I have not connected the check engine light yet so don't know if I am getting a check engine light but do you guys have any ides why all the plugs on that side would be black.
Thanks
Thanks
Joined: Sep 2000
Posts: 1,153
Likes: 18
From: Annapolis Maryland
Car: To many to list
Yeah these cars didnt have an LT1 but they did have spark plugs
I would say if they are very black that you are running rich for some reason on the one side.Get the SES light hooked up and pull the codes.
I would say if they are very black that you are running rich for some reason on the one side.Get the SES light hooked up and pull the codes. 
Supreme Member
Joined: Jan 2002
Posts: 1,370
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From: Las Vegas, NV
Car: 1990 Iroc-Z
Engine: L98
Transmission: 700R4
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