Eddy head users what plugs are you running? Buddy has a 11-1 496 in a 68 B body he just picked up and we're getting it ready for upcoming race weekend.
Re: Spark plugs for Eddy RPM heads - 06/05/1702:29 AM
I'd use NGK-6987 which is a Jeep plug. It is cheap ($1.97 each from Summit) has a projected tip and a wide gap. If you have a good ignition system you should be able to fire it. This is the plug I use in my pump gas engines.
Re: Spark plugs for Eddy RPM heads - 06/05/1702:45 AM
Andy thanks for the quick reply, it has NGK BKR6E's he hasn't ran the car yet so just want to prep it for his first test/tune night out. He has MSD 6 and MSD dizzy also a couple pails of 110 for it and will use that this race weekend.
Re: Spark plugs for Eddy RPM heads - 06/05/1703:36 AM
The 6 series plug is too warm for that compression. I'd go with a BCPR7ES. Same plug I run in the 572 @ 10.75:1. I ran one heat range warmer in the old 446 which had 10.2:1
Re: Spark plugs for Eddy RPM heads - 06/05/1703:54 AM
Originally Posted By Blown 68 R/T
Eddy head users what plugs are you running? Buddy has a 11-1 496 in a 68 B body he just picked up and we're getting it ready for upcoming race weekend.
At 12.1 I've street driven and raced w/ 7's and 8's and prefer 8's in hotter weather and 7's when it's cold w/lower engine temps.......
Re: Spark plugs for Eddy RPM heads - 06/05/1705:17 AM
Autolite AR3911 or 3912 for projected tips and 39932 or 3933 for restracted gaps In Champions I would try RC9YC and see how they look, cheap and easy to find