The porting may change the breathing just a little, I would be inclined to up the main one, to be on the safe side.
The main will only play a little part in the break in, as 3/4 throttle only just activates the main.
If you do get to over 3/4 the larger main could save you from running lean.
What oil ratio do you use in the soup.
The main will only play a little part in the break in, as 3/4 throttle only just activates the main.
If you do get to over 3/4 the larger main could save you from running lean.
What oil ratio do you use in the soup.