race veterans plz help 2

thanks for the input guys..i put a the black spring in the sec quick change spot and i also added a 42 squirter now hesitaton is gone i used my drive way as a burnout box and launch place...lol...thanks again moparts but now my question is im going to the track again now what to do ant suggestions on jet size where to start stoock ones are in the high 60s?thanks again reply would be awsome cant wait to race again hope to nail low 12 again and tune it to 11.99 that was my goal2 years ago thern start a new project