So if I'm understanding you correctly you want to do your street driving with low octane gas through a 1/4" steel line. Then if you want to step on it you'll flip a switch to activate and electric pump and good gas. For one thing I don't think 1/4" fuel line is big enough also you'd better hook up a boost pressure switch to activate the electric pump or you'll run out of fuel real fast if you forget to flip the switch when you go to pass someone. Good luck.
