Plug Gap ?

Does anyone know what is the gap I need to set for AC Delco Rapidfire plugs ? I have a 454 w/4bbl.
Thanks

Most of those gap at either .045
But not all. Usually gap them the same as the standard plug. Unless the ignition system is modified.

Thanks Ken,
At least it's a start.

I called delco support... dont remember what they told me but it was oddball.. they asked me a few questions and I think he told me something like .038 on my 350 vette

by the way.. let me endorse rapid fire plugs..

I am a huge fan.. they are more expensive but I observed a more complete burn with them... I actually had to crank the timing down a degree to use them... but it ran better than with the timing up and bosch platinums

I think the difference is even more noticable with an MSD or other enhanced ignition.

when my 427 gets back on the road ... it will get rapid fires.

I run them in my 80 chevy truck... the plugs are worth more than the truck.

Thanks,
I'm going through a process of elimination to determine why my car runs rough between 2,000 & 25,000 rpm's. I get some slight popping from the exhaust,otherwise she runs fine. I'm also changing the wires to Taylor Spiral's.
I suspect that the problem will be in the ignition.

warbird said: Thanks, I'm going through a process of elimination to determine why my car runs rough between 2,000 & 25,000 rpm's. I get some slight popping from the exhaust,otherwise she runs fine. I'm also changing the wires to Taylor Spiral's. I suspect that the problem will be in the ignition.

man.. you have good taste.. (thats what i use )

between delco rapids and taylor spirals...

you must be a scholar and a gentleman

warbird said: Thanks, I'm going through a process of elimination to determine why my car runs rough between 2,000 & 25,000 rpm's. I get some slight popping from the exhaust,otherwise she runs fine. I'm also changing the wires to Taylor Spiral's. I suspect that the problem will be in the ignition.

HOLY CROW!!!!!

25,000rpm's???????

What in Odin's name are you running?

An F-14???

Wish I had one.

Just kidding.

Alan

Just a typo 2,500 rpm's is what I meant !