I am looking for pistons with rings (.03 or .04 over) for a 292 rebuild.  I would like about 10:1 compression when finished.  I want to run available premium pump gas.  All the ones I have found so far are flat tops.  I would like to find some high domes to get to my chosen compression ratio.  I plan on buying Mummert aluminum heads.  Any suggestions where I can find some??