Help troubleshoot 904? Slipping at higher RPMs

Jay, I think that 904 of one of my builds. In 20 + years of building them, That's a first for me hearing slipping problems like that. I can think of a couple things that could cause it. Line pressure like they said. If you drop the pan check to filter to make sure its tight. And check valvebody bolts to make sure they are also tight. I am getting old so i hope i didnt forget to tighten them? lol

I would also check to make sure you don't have a kinked trans line? Or a blockage in the cooling system? I built it for a buddy. And give a full one year warranty on all of them i build. So if you can't figure it out? We can meet up and i will open her back up and see if a problem in the trans. Free of charge of course.

I see you live in Marietta? I drive down to Calhoun Ga for the best ribs around just about every week or so. So if she has to come back out? Will be a good excuse to make a rib run. And meet you down that way somewhere to pick it up? Can email me @ [email protected] Or call or text me 423-402-6752 Just let me know... Thanks! Melvin Croft