The main thing I say about brake in is to make sure the engine starts quickly when you make the first attempt, I have lost two Cams over the years  and both  Cams were in engines that had problems starting. One caused by a bad ignition module that would hit and miss the other buy a faulty new Carburetor.  

Yes I agree with you But I found out the hard way!

One thing when playing with EFI is that there is much more things what can go south when starting a new engine.
There is times when I can give my other nut in exchange to working roller lifters for Y-Block. 


Hyvinkää, FI