I'm on an AA flight from LHR landing at 8PM in T8 on Sunday evening. My final destination is GRR; I originally intended to be overnight in NY, but I found a JetBlue flight departing T5 for ORD at 9:45PM that makes it easier to get to GRR. Is it worth the risk trying to make the connection?
I have Global entry, precheck, and no checked bags, however I've never been through JFK...
Also, I'm guessing it's not recommended I try and grab some food or a shower at the T8 lounge...I just noticed there is no lounge at T5

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Thanks in advance for any advice