The top plate can be changed for single or dual carb set up. That is a 250 blower. Not sure if it is original. I thought the 525 hawks had B&M 174 blowers, like the Merc 525SC has a Wieand 177.
Either way its has 250 blower now.
What parts do you need??????
im just buying that carb plate gaskets. when i was talking to john he said to check it for leaks. i figured i better buy them now as insurance just in case next they are needed next weekend.
plus im compiling this xls spreadsheet w/ all this maintenance stuff so i dont have to go thru this every time.