I'm doing the switch to E85 this year and I'm changing a few things on my fuel system like pump,filter,lines,regulator etc... Now I know people out there say I don't need to change anything and then there is the camp that says change it all. My current system is a Holley blue with a Quick Fuel dead head regulator.

Gus beer

64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60