3 to 4 flare at WOT?

[06dmax]

just had a ppe stage 5 installed in my truck and at WOT 3rd gear will rev up then go to 4th any sugestions to what it may be never did that with stock trans?

 

[Mike L.]

just had a ppe stage 5 installed in my truck and at WOT 3rd gear will rev up then go to 4th any sugestions to what it may be never did that with stock trans?

Who built it? Codes? Has it been scanned with a professional scanner?

 

[06dmax]

local guy that builds race trans around here. and when i first put it in there were some codes for selinod b and it would only go in 3rd gear so i had my chevy dealer flash the computer and that didnt work so i took the valve body out replaced the selinod b and what not put it back in and it started working. then i just did the same breakin as i did when i did a shift kit 1 trhough 6 and little throttle and then worked my way up thats where im at now