I feel like that temp is great for performance but if it sees much street miles that's too cold IMO. Harder to get the oil up to temp to boil off condensation and the part-throttle efficiency will be worse, and possibly more liquid fuel making it into the cylinders and washing down the oil as well (I know not likely with EFI though). All said and done anyway the OP would probably only lose 10-ish HP at WOT with the engine running at 180 degrees instead of 150. Not to mention the EFI system not being able to work correctly below 180.