yea i replaced my cat right after i purchased the truck so yall are saying it really dosent matter about running a colder plug at all by the way i live down in the middle of texas hot all the time i dont no if that makes a difference lol

 

Hot and cold in regards to spark plugs refers to their ability to dissipate heat into the cylinder head. It has absolutely nothing to do with operating or ambient temperature.

 

Like Miami said, the plug has nothing to do with it. And like I said , fix the intake ASAP, unless you want to buy another cat.

 

i will plan on ordering it this week and some other goodies =]

 

it feels like my truck likes the +4s but i don't want to unknowingly screw something up. one thing i've wondered about with them is people have mentioned the huge gap (.065) being an issue, but how would this be much different than an msd box? the msd makes the spark burn longer. wouldn't the bigger gap also make for a really big spark that would be similar to an msd spark?

 

The bigger gap requires more energy for the spark to be able to jump it. This puts more stress on the ignition system and can result in missing, flameout, weaker spark and poor performance. Generally, increasing the gap from stock spec will not yield any appreciable performance improvement. The spec on my V10 is .045, .065 sounds high.

 

I think you hit the nail on the head. People tend to forget trucks have personalities too. Well, not really, but they can be different from each other, or be down right temperamental. Each truck is an individual machine and has had different life experiences just like each person has, therefor the metals, plastics and everything else will react differently. Sorta like a personality. You gotta use whatever makes you truck happy. That's why it's funny when you run into an old timer and he's the only one that can make his car purrrr, and for anyone else it runs like crap, that's what it's all about. I've had lots of old cars my wife wouldn't touch for any reason. For her they would complain like crazy, for me I knew how to sweet talk them .

 

The only vehicle that I have ever come across that had a gap that big from factory was a 1975 Pontiac Catalina 455CI and that had a gap of .060. Everything else has usually been in the .030's to .040's.

 

Whoever said that Champion RC12YC's are not the stock plug, you are wrong. Here is a good refrence to Magnum engine plugs.
http://dodgeram.org/tech/gas/spark_p...park_plugs.htm

I have 3923s in it now. Used to have Bosch +2s in it and it runs much smoother now. May try to get some Champion Truck 3344 plugs (same as Autolite 3923) and see if it runs any better.

 

My 01 is my 4th 2nd Gen, 2nd with a 5.2. I'll agree with them having "personality". I have not used the same brand of plug in any of them. Autolites is what my current ones seem to prefer. Also a wire upgrade might help. Personally I have never run lower tham 8mm for wires, reguardless of what is called for. Its just a preference and based on availability of them thru my racing vendors. As far as plug gap, Miami hit it on the head,and as usual, stole my thunder() LOL.