To Randy or anyone with knowledge,
I picked up 2 OS 46 VFs and 2 OS 40VFs last fall (all but one NIB and that one a 40 with very low time). I had planned to power my new PA plane with the 40, but it's 5 or 6 ounces porkier than I had planned and thought instead I'd go with the 46.
Brett Buck gave me THE setup to try with the 40. Is there any significant difference in setting up the 46? Venturi size, prop, pipe length, etc.? I don't have a lot of experience running these OS engines, so any help will be appreciated.
Oh, one of the 46s was setup by Mr. Smith himself, but the running instructions that he's so good about including were apparently lost along the way. 2 new pipes also came from Mr. Smith.