steaming pipes

i"ve never had problems with my motors i always build my own after machine work is done read my post new motor blues anyway now my motor has 138 miles on it i noticed lastnite the tailpipes are steaming smoke out i"m talking alot the longer it runs the more it steams theres no water in the oil rad.full i was thinking headgasket but loseing no water but noticed temp is bout 10 degrees hotter than normal 195 instead of 185 not running hot the old rad. cap wasn't holding pressure so i put a new cap on last week that couldn't have caused it or could it if i put my hand over the pipes i get a little moister on it not much wish i hadn't sold my old engine i built it just wanted more power anybody know anything i can check before i pull heads i'm tired of takeing this motor apart