Looks to me like a high % coastal, can't say pure by any means, but is definitely got a good bit of coastal influence in it based on head pattern / general look. Most carpets are testy when they are young, but calm down pretty mellow as they go into adult hood. Something about getting some size on them really helps them calm down. Sometimes though, when a carpet is rarely interacted with with the exception of food time they can become pretty cage aggressive. Not a beginner snake in my book, but they are not a hard species to work with and keep. Make sure you use a hook properly when getting her out, and even start tapping her on the head when you initiate an interaction outside of the cage, this way you can start to try and hook train her so to speak. My carpets were devils when they were younger (heck my Irian Jaya girl is still devilish). But as soon as the majority got over 3-4' they calmed down and are not even cage aggressive unless there is food directly involved. Any specific questions other than that let me know I should be able to assist. Otherwise. Great pick up! (also I picked up gas for 2.80 today personally :-D