Hi I was planning on a running a dual intank pump set-up, and I came to the conclusion that i'm going to need to run new fuel line. The question I have is what size is too big? I have a bunch -8 and -12 laying around, and i didn't know if -12 would be too big for my set-up. My HP goal is going to be right in around 800-900 at the flywheel. Thanks.