Cams looked good before the 400 miles and now it will barely run? Better pull those lifters back out and have a look. BTDT. Followed all procedures for breaking in new lifters on a used cam, ate them anyway. All new, all good, over 50K miles ago. Used Sealed Power HT2011 lifters.
Started with a ticking front that would not stop. Lifter would not pump up and stay, even on the bench. Does not happen often, but does occasionally.
I failed to mention I went with the sealed power lifters also. No indication before this issue such as the ticking. and removing the decompression solenoid and doing a compression check sort of gives me confidence the lifters haven't failed yet. but thank you for the thoughts