'05 Hemi ?'s

You can change the heads to the eagle heads or 6.1 heads. I have an 05 that I have put over 30,000 miles on it with the previous 30,000. Hard miles at that with autocross racing in 2 gear most of the time and some high speed road course. From what I understand the valve problem happens when motor runs hot. What intake do you plan on running are you going carbed or factory truck, car, or SRT intake. If going 5.7 car or SRT intake better to get 6.1 heads.