One other thing with the MER, if it is a few seasons old with the wideband correction, set your xfactor fueling to enable at 150mph. If not, the afr will default to 9:1 or so and really fall on it's face once it hits exactly 100mph. Eric did offer to fix it no problemo though.
After I built the stroker, the car wanted a lot more fuel in park and drive positions, or else it would stall as well.