Welcome aboard and thanks for joining...
It is a bit slow here during the winter months, it is VERY busy in the summer.
The 155 engine is a GREAT engine. Runs very well. You can do minor mods with no real issues. The 130 is pretty much limited to factory specs. They don't like ot be modified. In most cases, if you want more power, buy larger engines with the next skis. I say this as they will take more abuse and there are many mods out there for them.
Congrats on the skis, you will have a BLAST...