GTR want to stall when downshifting since rebuilt

[cobrAA]

When I'm decellarating too quick ( hard braking) or bad downshift ( like 4 to 2 or even 1 gear), car either stall or rpm goes to like 500.. rumble then bt miracle, goes back to 1100rpm.

My tuner said it *could* be my Blowoff, they are blitz unit. However, last year, they were perfectly fine. My rebuilt include Type b poncam.

Would a HKS eids help my problem? Synapse anti-stall bov?

[GTRADDICT]

Would it be the big cams? Less vacuum...

[gtrte37]

I have that EXACT same problem, but I have no bov...getting one soon though cuz its driving me crazy

[Snake556]

GTRADDICT could be right. Bigger cams will equal a lower idle. I know a lot of guys have their cars almost stall out at lights because of them

[gtrjon]

yea but hes runing type b pon cams hardly considered big cams. im running 270 procams with 10.25 lift i was expecting it to ocassionally stall while downshifting but it doesnt.