Funny I had a buddy Richie and one time went to his house to run his built T-type.. he would bury the needle on his 30 lb gauge on the highway on pump gas and meth..
Take it to the track.. all of a sudden we need C16 to run 25 PSI.
Tim.. if you want some added insurance.. there is nothing wrong add some race gas to your tank. You do what you feel comfortable with.. there is nothing wrong with that.
5 gallon pail of C16 is now 90.00. That throws out racing for me. But hey.. if its free.. i'd have no issue dropping some in my tank.