I was just wandering if anyone would know what would be the best spark plugs to run in my motor. The set up is a B16 block with CTR pistons and a GSR head. CR is 12.2:1 CTR cams also. It is all motor and will run on 93 octane down here in FL with temps in the 80's-90's. Thanks

 

ttt

 

NGK Laser Platinum
PFR6G-11
PFR7G-11

NGK VX Platinum (platinum-coated electrode)
BKR6EVX-11
BKR7EVX-11

NGK Iridium (same electrode as VX, just made out of iridium)
BKR6EIX-11
no 7 heat range

 

those would work, but i like the NGK BKR7E's. copper, work great and are inexpensive. about $2 each.

either way go with NGK's.

 

copper is the best for performance, but platinum last longer