The store closes in an hour and half, and i need to know which plugs i should go with? As of now i have AC Delco RAPIDFIRES and im not too pleased with them, So im not sure whether i should get Regular AC delco plugs. The motor is an 87' 305 TPI w/ L98 alluminum Vette Heads. From what i heard i wont touch Bosch, So i hear AC Delco or NGK, If so anyone know what heat/cold range i should go?

 

This might be too late, but I like both the regular delco plugs and the NGK's. Right now I am running the NGK's.

nick

 

how is the NGK's? Why type

 

I'm running regular OEM-spec Delco plugs. Runs a whole lot better with them than the Bosch Plats I had.

 

You'll probably notice your idle inprove after ditching those Rapidfire's I've had nothing but problems with them.

 

I liked my rapid fires when I had them, the car really seemed to like them too.

AC Delco plugs are the way to go, I have tried several different mfg plugs and always came back to Delco, they just plain work better in my car.

 

I'm probably too late, but i normally run AC R43TS in about everything.

I'm running the accel shorty plugs that cross reference to that right now though, much easier with the SLP headers.

 

i have to agree with Ed i run the AC43TS and they seem to run good.

 

Champion RV15YC4 works great for me, but I'm running mostly stock engines with nothing over 11:1 compression.