Why not build a 340?

You'll be lucky if the 340 puts that down to the rear wheels. That's a very high estimate for such a mild build.
With different numbers from different builds, hard for me to estimate. Initially I felt if I could get 270 to the wheels I would be happy with that. Engine dyno numbers don't really mean much to me, where the rubber meets the road is what I'm interested in. This is going to be a daily driver, I'm semi retired, I have a lot of screwing off to do.