Aight folks, what spark plugs would ya'll recommend for a 305 TBI ? I'd like to hear the best option and also less standard not overly pricy options.

Bosch .. go with the 4+ ones ?

What about Splitfire plugs ... heard good and bad about them



I know that some plugs don't really work 100 percent perfect with fuel injection if they work awesome with carbs.. so... NKG.. Autolite ( *lol* ) .. champion ... what ?

 

i just put in the BOSCH 2+ today they seem ok i dont feel a diffrance in the plugs.. never did. and they were 3.99$Each.

 

hmmmm ok maybe I should make the subject a bit bigger ... what about ... spark plug/spark plug wires combo ??

Anyone got good experience with Autolite wires ?
And Accel wires (some people diss these ones)

 

Since when is a spark plug considered a mod? Do a
This has been discussed a million times, just buy what the label under your hood calls for, a plain AC Delco plug!!!

 

Plain jain AC delco plugs are the best for your motor. Don't waste your money on fancy plugs that do nothing. A search will yeild you various opinions on plug wires.

 

I agree with above. I would go with the AC Delco. Anything else and I think your just wasting your money. And I would just get a good quality wire kit.

 

Contextually...

Multi-prong plugs are worthless in our motors. At best they are a waste of money, at worst they will impede the flame front in the combustion chamber.

If you don't like doing plugs often, Bosch Platinum are fine (single plain old platinum) SO LONG AS YOU DO NOT RUN AN AFTERMARKET IGNITION!! Not so good for reading the plugs either, but longevity is great. Same with all the funky metal plugs.

Bosch copper core (Cu conducts better than all those funky metals), AC Delco, Champion all the 'regular' plugs are fine as well if you feel you don't mind changing them more often, or you need to read the plugs.

Wires... depends on the ignition. Aftermarket ignition will typically call for thicker/better wires. Stock ignition, you can use stock-type wires.

On a 305 TBI... anything is fine.

 

 

dam$..... i got the bosh 2+ ...o... Welll live in learn.

 

OK I'll probably go for the Champions ... heard good stuff about them from other forums (regarding my other car in the garage)

 

pretty much plugs are plugs

main difference between them is how high the resistor value in the plug is. and what type of metal


any of the other plugs that have multi prong and other doohickies on them are a waste of money UNLESS you are looking for long life plugs.
if you put 4 electrodes on a plug you are still going to only get one spark at a time only difference is now you have more metal there to wear away so the plug will last a little longer
but as someoen else said they come at a price sometimes impeding the flame front



as far as the good plugs

platnum and iridium plugs don't quite have the conduction ability of copper but last a lot longer



so whats resistance have to do with anything?

high resistance values mean less current is able to flow.
kinda like a valve for your sink
you turn the sink off it is at max resistance stopping the water
open it up a little you are lessening the resistance and a little water flows


some plugs have a decent amount of resistance though some I have found had quite a bit more resistance then I would want.


but still just about any NORMAL plug shoudl work


NGK, champion, ac delco and so on

 

THis could be tottal BS but some one told me that there uncle used a Bosch 4+ and it got so hot that it welded the tips to the piston.............. thats what i am thinking but.. then about a month ago some one told me the same thing.... isn't that imposible.. since there is other hotter and MSD systems?? anyone else heARED it?