I do 100 on the top on 90 on the bottom, with Moly. Heres a little hint also, but you might already know this, spray copper on the MLS both sides air dry for a minutes. Makes a huge difference on start up.
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Ryan
1990 Mustang GT (In Process)
1993 LX Coupe (Daily Driver, but just choose not to)
2005 Excursion (Big Pig)