[rghavana]

If you installed shift kit need to check what pressures are, make sure they match what ever your build was designed for.

 

[rghavana]

IMO, that would really depend on which transgo shift kit you have and wear and tear of parts .
should have a ball park number with instructions. Have you tried to contact Transgo?

 

[rghavana]

Should be pressure testing/checking fluid level at operating temp, ATF fluid viscosity is going to change according to temp which effects pressure.
At a minimum should have line pressure @ idle psi number, line pressure WOT psi number and reverse/front clutch psi numbers.
That is controlled by valve body, I would be contacting Transgo or search on thier website for that info.
There are different versions of Transgo kits, they should be able to give you an idea of what thier parts do to alter pressures. ie how many turns to lower or increase, what springs etc.

 

[rghavana]

That is the kit you have, from 2009?
that is a starting point, might need to adjust pressure.
if your adjusting it and no increase then need to figure out why,

Did you "Install Spring Seat as shown. Make sure flat on spring
seat has some clearance from casting. File casting if
necessary to give it a little room to rotate slightly. Do
not allow it to bind between PR valve and casting!
Recheck this just before installing VB into case."

good info here on checking/adjusting psi
Fine Tuning Your Dodge Automatic 47re/rh Series (46 and early 48 series similar) - Transmission & Transfer Case - Mopar1973Man.Com LLC