I have a question I hope someone can help me with.I have a 2007 streetglide with a stock 96,stage 1 air filter,power commander,true duel exhaust and rinehart mufflers.I am going to build a 103,stage 2, with 255 cams,flat top cast pistons,My question is what is the best cylinder head and valve combo to run and still keep my lo end and midrange torque.