Paul, On your home page you show a guy holding a 109 # 13B. Has that ever run?

Skip

I am sure it has. It was built by the guys at Mazdatrix and they
test run every engine they build. They also have a dyno so it could
have been dynoed as well. Check with Dave Lemon at Mazdatrix.
The aluminum end housings are from Racing Beat.

Paul Lamar