I feel I must Apologize!...I had not found a lot of info on these engines as I did not know just what search terms to use....However...if I just manual look thru thread titles here in the hit and miss section, I am finding a wealth of info!...it looks like I have a couple days of reading to catch up...sorry I have not been asking great questions!....hopeful after I read more and my engine shows up....perhaps my questions/ input will improve!