I don't know alot about the peruvian line but I had a Guyana rtb that was about a year and a half old from a pet store. He was well taken care of but I think he became accustomed to not being handled because he seemed to hate it. He'd strike at me and try to get away if I even touched him and he would wildly swing his head back and forth trying to get away from me.
The only suggestion I can think of for getting your boa to calm down is to try handling less, start off small. Handle it once a day for 5 or 10 minutes then put it back do that every day than in a month or two move up to 10-15 minutes.
I could never get mine to calm down and I ended up selling him to someone who wanted to breed him.
I'll also suggest the same thing I was told.
I would seriously suggest you think long and hard about his attitude. I don't know how old your snake is but I'd bet he/she's not full grown. If he's aggressive when he's young I'd suggest some serious sole searching about whether or not you want to have to deal with the snake when its full grown. If its a trial now and you are already unhappy imagine how your going to feel when the snake weighs 8 to 12 lbs and is 7 or 8 feet long.
I could be wrong about the size but even if its only 5 or 6 lbs and 6 feet long the point is the same. These snakes get big and there size is something that needs to be taken seriously.
This was the advice I was given when I posted up on here asking what I should do and it's very good advice.
These where just a couple of my thoughts. Good luck and post pictures
