I've been running a stock magnum bottom end, E85 and turbo in my 3250lb Aussie charger for a couple of years now. I run around 10.2 to down the quarter. I'm surprised how long the bottom has lasted but it finally let go last night when I wount up the boost to 625 horsepower at the wheels. It's breathing quite badly and has a compression down on one cylinder so I'm thinking factory piston issue. Was amazing how long it lasted. Hope this build goes well for you because I was really happy with mine for a long time