Best plugs for 350 TBI

[95Escahoe]

Currently I run the cheap AC Delco plugs there are a platinum plug they make too, are they worth the extra money or just stick with these

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[91Bluestreak]

I have run the acdelcos and E3 plugs and never noticed any difference so I say just stick with the cheap acdelcos.

 

[SAATR]

CR43TS have always worked fine for me, can't think of a good reason to run anything else on a stock engine.

 

[95Escahoe]

Thanks for the advice

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[TylerZ281500]

ive always run delcos. some times you can get a slight difference messing with spark plug gap to about .005 but i wouldnt overdue it.

 

[narizon]

Regular AC Delco's seam to run better in my '89.I tried "performance" plugs & the TBI did not like it.It was a waste of hard earned $$$$.
I have the Delco's gaped at .50 right now & it's perfect,but I due have an MSD coil & 6A ignition box.

 

[TylerZ281500]

isnt stock gap .035?

 

[ChrisAU]

isnt stock gap .035?

Correct.

 

[Gatorboy]

I've used ac delco and ngk and I have no complaints about either

 

[KReePiN]

delcos here also.....seem to be just fine