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I'm running 112 mph and have been a 1.59 60' with the stock lines. Granted I only have one carburetor to feed.
However, if its not going on the track, and you're not going to see high G-force launches or extended , highly inadvisable on public roads WOT blasts, I think you'll be fine. I'd definitely try it and see before I spend the scratch.
Just keep checking the carbs for rust particles!
Steve