That surprises me that with a turbo that the stall speed would be that high. I will be the first one to admit that I don't know anything about how to set one up, but I always thought that if you loaded the engine sooner that boost would build faster. Do you need to get the engine wound up to 25-3000 rpm to get enough exhaust flow to spin the turbo for initial boost? I have not eliminated the possibility of going with a 350c with a lock up converter.Still looking around to see what I can find. Jay 6155