Autolite 103 race

My question is in regard to Autolite 103 race plugs. I have a 3.3" pulley, powerlog/ported manifolds, 3" downpipe, JMB fenderwell intake, 1.9 ratio rockers, PCM tune, etc... Obviously I want to keep KR at 0. Would the Autolite 103 race plugs (3 heat ranges colder) work well? What gap? Thanks!

I use AL 103s gapped at 0.045". Of course it will depend on your mods. In most cases you have to experiment to see what is best for you. Have you run a check of KR?

I use AL 103s gapped at 0.045". Of course it will depend on your mods. In most cases you have to experiment to see what is best for you. Have you run a check of KR?

No, I havent checked for KR. Don't have the equipment. What do you use to check for KR? I haven't put all my mods on yet. What are your mods? Thanks!

You can use a program such as Autotap running on a laptop computer or a scan gauge like below:

Click here (http://www.pfyc.com/pc/GN2110/GPGAU/AeroForce+Tech+Interceptor+Scan+Gauges.html)


What are your mods? Thanks!

Click here (http://www.dragtimes.com/Pontiac-Grand-Prix-Timeslip-6428.html)