Installed a new Extreme Automatics pump in my EA Stage II tranny & was putting out way too much pressure , was puking fluid out the overflow tube .
Sent the whole 200r4 tranny back for a refresh & they changed the boost valve to a .472 in the process.
They also fabricated & installed a baffle plate/ shield behind the pump which diverts fluid back down into the pan instead of out the overflow tube. Tranny was put on their dyno &
Pressure at full TV cable has now dropped to 275psi from 325psi.
It fixed the problem.
I’d give Lonnie or Chris Cox a call at Extreme Automatics