stock motor is around 120, but yours has had work done, 10psi is difference is pretty lopsided, you might have an airleak and the low side is burning up due to running lean (heat)...a leakdown test will source your airleak
how is the rest of the bike worth what the seller wants with the best thing about it gone...the fucking plastics
buy it and part it out then see how much youre in the hole for....idiot