Cam selection

Thanks for the info.. Up until now, I have never heard of Erson cams. Seems like the 254* would be appropriate for what I want; what with a stock head and stock valves. I didn't read where either of you are running a four barrel carb. on your slants. I trust the 254* is a good overall match with the four barrel carb. Would the new cam come with new lifters? Actually, my stock ones don't look too bad at all. Lastly, is Holley the only one you can think of that offers a carb. in the 390 to 400 cfm range? I'm ready to "bite-the-bullet" price wise if I need to, however more options may be more beneficial.
Have a great New Year.... Paul