I bought Molnar crank and rods for my engine last summer. I was very impressed with them both. All main and rod journal were .0005" under sized (for extra clearace I'm guessing), but they were all the same, zero taper anywhere. Only thing that I had to do to the crank was balance it, and it didn't take much to do that.
The rod bushings were sized correctly out of the box (unlike the previous set (differnt mfg) that I bought that the pin wouldn't go into at all, another trip to the machine shop and more $'s)
If I were going to buy a crank today, my first choice would be Molnar.

Brian