Originally Posted by M3DCTBT
We tickled 499whp on a light E30 E85 mixture + RB's 19psi midrange to 17psi up top. No lean out issues but didn't push our luck. 263whp baseline.
Was that on the stock fuel system? If the RBs can produce high 400's on a e85 mix without meth, this would be a route I would like to eventually go with.