What Spark Plug should I use?

[Darkside]

I currently have AC CR43TS spark plugs. I recently put on an adjustable billet regulator and a Walbro 340. The regulator was used and I have not adjusted it yet, because I have not hooked up my fuel pressure gauge. My car would not start this morning, I happened to pull a plug and noticed it was gas and oil fouled. I realize that the regulator is not adjusted yet, but still have to change plugs, what plugs should I use???

 

[FJM568]

The ones you had in there would be fine(new, of course)...I've also had good luck with the NGK UR5 plugs, too...Got them in my car right now...

But, you really need to set the FP before you do anything...

 

[turbowrenchhead]

I had good luck with the CR42TS. One heat range colder.