[rmay635703]

You might consider a DIY ceramic coating of your piston head since they are out and about anyway, that should solve most of your lean run holes

Pistons (Dave Baker; Dirk Broer; Dave Williams; John De Armond; Chris BeHanna)
Advanced Coating Technology by Swain Tech for Automotive Coatings including engine piston coatings, ceramic coating services engine, automotive ceramic coating, ceramic header coating, dry film lubricant, race engine coatings, exhaust header coating

(I can't find the ceramic coat I was thinking of but you get the idea)

Also
Kal Gard High Performance Oil and Accessories

A good spray on coating for the inside of your engine block.

Both of these should "help" with lean run detonation issues.

Worth a look