You will need to lower the front derailleur and perhaps shorten the chain.

Hugh

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Genetics load the gun, lifestyle pulls the trigger.

Would it be a bad idea to admin a power test tonight ok trainer to get the yet done and have r adjusted tomorrow so it's right for race?

I know it's inviting but this close to the Saturday race I vote for not worrying about a power test to use for pacing and just go out and ride a bit as you would just before your race. Collect power data at the race but don't worry too much about monitoring during the race. It will be too easy to get fixated on numbers while you should be watching where you're going. Post race analysis of the numbers will be useful though.

Have fun and don't stress until you have a few weeks time riding with power.

Hugh

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Genetics load the gun, lifestyle pulls the trigger.

So just wait to get it all installed and adjusted tomorrow?

You should adjust the derailleur as soon as you install the cranks. Right now it's way more important to get the shifting well sorted than stressing over power. Slack in the front derailleur cable will need to be taken up when it's lowered.

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Genetics load the gun, lifestyle pulls the trigger.