Can you tell

[KirkF350]

That this has been modified?
R&D plate machined down to the spects per...

http://www.greenhulk.net/forums/showthread.php?t=30688

[KirkF350]

maybe the picture if the d-plate would help.

[WFO]

I doesnt appear to be opened.

[BlitzK]

If it's been opened .100 (like in that thread you linked to), it would be hard to tell in pics.

To me, it looks stock.

[KirkF350]

I doesnt appear to be opened.

That's the beauty of it.
This one machinist @ my work is old school and a freaken perfectionist.
I was happy when he just opened it up along the bottom, but he had to round the corders, file the edges, sand the edges.....

[KirkF350]

If it's been opened .100 (like in that thread you linked to), it would be hard to tell in pics.

To me, it looks stock.

R&D plate opened up to .200. This is going on the 1300.

[BlitzK]

Does the .200 larger opening bring it closer to the size of Riva's?

[KirkF350]

Does the .200 larger opening bring it closer to the size of Riva's?

I guess. From Kerrys response, the Group K and Riva plate only have to be opened .100.
From what I understand, when you lose the cat-con, you drop 40-50 rpm and from what Kerry said, this little mod will add 40-50 rpm over the stock d-plate. In theory, by replacing the c-con with this modded d-plate, there should be no rpm loss, or gain. I will not know because I have yet to put a tach on the 1300 for a base line rpm test. I have no reason to doubt Kerry on this, only wish I had the time to do back to back testing.

[BlitzK]

Right on. I was just asking because the Riva D-plate opening is a little larger than the R&D one.