Time For New Plugs?
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Supreme Member
Joined: Apr 2008
Posts: 2,342
Likes: 24
From: Dumfries, VA
Car: 1985 Z28
Engine: 334 Stroker Superram 222/230
Transmission: Full Manual 700R4 / 3k Street Edge
Axle/Gears: 3.90 Eaton, Moser, Richmond & More
Time For New Plugs?
Ever since I got the new longblock assembly put in, I have noticed a strange vibration that is more pronounced at certain RPM's that I newer noticed before. This got extremely bad a couple months ago and replacing the spark plug wires rectified about 70% of the problem but it still feels like It's misfiring ESPECIALLY when the car is first started.
The new longblock we put in was exactly the same as the old one, but I opted to change the spark plug for new Denso Iridium IT16's.
I've heard both good things and bad things about Iridium in our cars. So, did I get the wrong type of plugs, or the wrong temperature plugs?
The new longblock we put in was exactly the same as the old one, but I opted to change the spark plug for new Denso Iridium IT16's.
I've heard both good things and bad things about Iridium in our cars. So, did I get the wrong type of plugs, or the wrong temperature plugs?
Member
Joined: Jun 2007
Posts: 117
Likes: 0
From: Kelowna, BC, Canada
Car: 88 firebird
Engine: 305 TBI
Transmission: 700R4
Re: Time For New Plugs?
Copper is one of the best conductors so I don't see why you'd want to run anything other than standard copper plugs. 8 copper plugs I'm sure would run you $10-15 so might as well change them.
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