best ab workout is the ab ripper X from the workout p90x...also if ur 160 now and want to get to 180 it depends on how much fat you have on ur body because while you workout you will also lose weight by burning fat but you will be gaining muscle which weighs more than fat....the only thing i can tell you to do is to just eat alot of meat and continue to workout regularly...and dont forget to do cardio...out of all the muscles in ur body the heart is the most important!!..lol....as for lifing yeah i lift 3 times a week but i run the other 4...also i go to college...i work 2 jobs...i have a g/f of 2 years...and i still make time to work on my car...haha...i always tell the girl that is my only baby that i can control!! so yeah i get to work on it but not as much as i'd like to though!!
