I am doing some minor port work and opened up the intake mainly by narrowing the intake bridge..Hopefully I didn't go too narrow, as I wasn't aware that breakage can be a problem...
I didnt change the timing much, maybe raised the intake roof 1 mm, and also lowered the boost port floor a mm or two (ok, right)?
Another question; how do my corner radiuses look (do I need to open them up any)
Also What bit do people use to miter the bevels inside the bore, what angle do they have to be and how close do I have to get to the exact angle? And I just have to miter the edges parallel to the piston rings, right.
One more question, after I finish all the port work and miters, and I hone the bore, do I need to re-ring or can I use the old rings if they meet the end gap specs after the hone?
Please let me know if I left anything out with the porting/ cleanup process.
Thanks