I asked about this before but now the local rob shop (gas station) has e85 and someone on here before said that they just put it in and went, no hose replacement or anything. so a question that i havent asked yet since this is a diff. blend of fuel and will prolly burn differently will the spark plugs still read the same as if u were running gasoline i.e black = rich, white = lean. and is the fuel pressure still run at or near 6 to 7 psi?