I just swaped my 6 speed to a TH400 with TB,and my first pass was a disaster,my second pass i figured out why my TB wasnt working so when i got to the line i hit the button and started building boost......now here is my concern.

when i let off the button the brake was still on and a few moments went by and then it clicked and released....is it normal to have a second or so delay with the brake?

 

No.
A properly working transbrake will engage within milliseconds of letting off the button, almost instantaneously.
You have issues, maybe in the solenoid itself, maybe in the wiring?

 

I would look at the solenoid or the brake valve/modulator valve to see if it is sticking. Also check to make sure the button you are using is truly releasing right away. Vince

 

didnt say if you have a delay box if so chech how much delay is in it and adjust

 

no box or anything like that...but i did talked to the guy i bought it from and he knew i was trying to get this car together in a week to run at pinks all out.The guy seems to think it is cause i bought a cheap button from radio shack.He says their are different buttons fast release,slow, delayed.....if its true i dont know but im just looking for opinions or suggestions