Alcohol spark plugs

[highflyer924]

What's a good alky plug needs to be a 5/8 tapered seat with a .708 reach
Engine is a 377 with domed pistons

[fast_crew]

Autolite AR473 should be fine.

[TBRE]

We've had some Autolites that wouldn't fire, right out of the box. I would use the NGK TR55.TB

[fast_crew]

I have heard of the quality issues with the autolites lately, thanks for the heads up Tony.

[DANNY]

We've had some Autolites that wouldn't fire, right out of the box. I would use the NGK TR55.TB

I have heard of the quality issues with the autolites lately, thanks for the heads up Tony.

It is funny you both say that, I had 2 that didnt fire on my daily driver car brand new out of the same box took em back for 2 more and no problems since... not a good thing tho.........

[ToddSmith16]

I've had same problem with ngk, wouldn't fire right out of box. Switched to autolight and never had a problem ngk you must gap and autolights I've never had to. 2 each thier own!