hey guys, just got done doin a full drivetrain rebuild/swap on this kid's 87 iroc. 305 to 350 swap, slp runners, 350 knock sensor/esc module,350 injectors, adj fuel psi reg,well did the tranny, super servo, 2 5/8 inch band, 10 vane pump, i've done several trannys before with out a problem, but this one is weird. reverse works, 1st works, my psi is 90 @ idle in d, od,n,P, when shiftin from 1st to 2nd it binds up, the valve body is sending fluid to the servo cuz i tapped into 2nd, but then it cuts off and goes back to 1st, it does it time and time agian, 1st,2nd 1st,2nd... anyone ever go through this? i've swapped valve bodys with no change.i need some ideas here......