Alternator sizing question

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I’m about to order a new wegner front drive for my ls3. I can choose either a 170 or 225 amp alternator. Car has all the common electronics such as efi, electric fans, A/C, electric fuel pump, power seats, power windows, stereo etc. so I thought i should order the 225 amp to leave me plenty of room. I have an AAW highway 22 which has a 175 amp mega fuse. Will ordering the 225 amp alternator blow the fuse? Can I upsize the megafuse? What are you guys doing, are you finding the 170 amp alternator sufficient? Thanks in advance.