The streamliner with a 430" Rodeck SB is at 16.5. Add 5% of the yellow stuff to compensate for the 5K feet between sea level and B-Ville and you should be back at sea lavel HP. Trust me this is safe. We ran at Ascot for seven years (CRA champions two years, Davis / Wirth racing) and had no problem with a Rodeck at 16.0. on alcohol. I ran 15.0 on 92% in Jr. fuel in the 1966 with 60 degrees lead. Best ET 9.87 at 200 even with a 310 CI cast iron SB and cast iron heads. Looking back I think it would have been better to run 50 degrees. Not because it would be easier on the engine but I think it would have gone faster. Be brave. The Wonderful One
Dont wish to hijack this topic, quick question,,, what is the approximate HP% loss in a n/a engine between sea level and Bonnerville??