hey retro , what is the weather like where you are ??? nova 7 plugs are pretty much unrunnable everywhere i have been !!! they are so cold you have to leave the igniter on the plug for like 10 sec. or more or else the engine dies
nova 6 , odo 77 , or mccoy mc8 are my three fav plugs
mccoy mc59 or mc9 suck though
later , monty