Hello, Madmaxx.
I am running, and this is too weak according to Mr. Lykins, 380 Lbs open and 145 Lbs seat. (No valve float, no troubles noticed so far.)
Problem is the roller lifters. According to some, engines with such should not be idled at all, due to
oil starvation. They rely on
oil- splash from the crank only. Unless they are of the modern type with
oil channels to the pins/ rollers.