Z pulls to right while shifting

BlackZMamba

My car is a 6 spd. manual transmission. I am on BC racing suspension. Recently I had an SPL rear camber kit installed, an alignment done, all new tires, and upgraded wheel size from 18" to 19".

I noticed that when I am accelerating, every time I shift and then give it gas, the car pulls to the right a little bit. It didn't used to do this before. It was still pulling to the side before the recent alignment and rear camber kit installation. It was not doing that when I was on my OEM stock wheels and lowered suspension.

I don't know what the problem might be.

Any ideas? It's kind of annoying that I have to slightly straighten the steering wheel when shifting. The pull is more noticeable when I step on it a little harder.

Note - there is no pull when I break, no vibration, and very slight (almost unnoticeable) steer wheel shake at cruising speeds (70mph+).

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