Race small block stroker...what plug?

Mad Dart said
Damn that is some compression! That E85 sounds like it does a great job.

Yes it's better than buying C14 at $11-12 a gal so I switched but I have to test it to make sure it is E84-86% not less.There are alot of other guys in the East coast with Mustangs with SBM and BBM in them.