Vb ?

[Lee Thompson]

In Chris's manual, it says that VBs with a 4th pressure port can be used in HP applications. Does not go into detail. I have an AA VB (with the 4th pressure port) that my friend and I are thinking about trying in his race trans. (Spare trans for a mid 10 car ). Anyone have any experience using one of these or simular VB? What, if any, changes to VB needs to be done to be usable @ the track? Thanks

 

[bison]

Chris could answer this better but thats the one out of a Cadillac i think. Its a good piece from what others have said. Just follow the normal procedures that you would for seperator plate mods, accumulators, and vb spring replacement as well as replacing the pump pressure regulator spring and boost valves. You may need to change the pump slide spring also. Assuming your using an aftermarket servo also.