Academic departments are as variable as private practice jobs. Some places are set up very well, have a fair payor mix, run lean and offer very good income, while others tend to take advantage of the new people, their staffing is very flabby, and the pay may suck. These places can be a mile or less apart in the same city. Your goal is to find a place that pays you a good income for the amount of clinical time that you work. Some places consider 3 1/2 days a week full-time, get you out often by 3 o'clock, etc. while other places think five days a week is full time and will regularly work you until 6. The second one might actually be the better job, if they pay enough and you are interested in working hard and making more money. Academia tends to attract more of the not work very hard and don't care about earning a lot of money crowd.
The only way to find out is to call and apply, but first you need to assess what you want out of a job and then go looking. I had offers that varied by more than 200k. You also need to know what the faculty are making after they are board certified and make assistant professor. It may me a lot more than your starting offer. Lots of people aren't cut out for academics, have little to offer, and are just using it as a jump off point for a better career/area/etc. They tend to bring down the starting offers for the truly committed.
As a data point, my academic job pays better than the AMC offers I've seen posted here and has less call, less clinical hours, a lower supervision ratio, and better benefits. It's a stable fair group and as a result has little attrition of faculty. The competition for a position is extremely high. As AMCs expand and what they offer (or don't offer) becomes more common, good academic positions will continue to become more competitive and even, gasp, desirable. You won't likely make 600+, unless you're the chairman, but you can certainly expect average MGMA numbers with a solid benefit package. And that's not too shabby when you're not working very hard.
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Il Destriero