Not sure i'd risk it as I know 1st hand the risks of running plugs that aren't cold enough. Melted the end of a spark plug off whilst running a 12 second 1/4 in one of my Subaru's. Cost me £2k in engine building for the sake of an extra £40 on plugs
After everyone saying how much extra heat is generated with a smaller pulley i'm not going to skimp this time.
MAFFA
