i have a v-7 y trim on a 331 h/c/i motor and i need to get it tunned its running rich at idle and every where else i bought a wide band for it and tried to tune it myself with just dealing with timing and fuel presure. i have 42lbs injectors and 255 in the tank. the local shop wants wants $630 plus tax for chip and custom tune. i know thats steep but they are the the only shop i know i can trust that will spend the time on the dyno and get it right. what im asking is should I spend the money or keep on tryin to tune myself or is there another route i can take. Does anyone have any suggestions?