Need advice: Car sways side to side on sudden acceleration

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As the title says, doesnt matter what speed it is. It feels like a fwd torque steer. It happens when step on the gas hard the car kind of moves side to side, like it sways.
I checked motor mounts by gas and brake method and couldnt find anything wrong. Also checked tire pressures their good. A local mechanic and i jacked up the car and we couldnt find anything wrong by wiggle suspesion parts, wheels and etc
What can be the culprit?

[rsv4dan]

Alignment? Excessive toe out on the rear could possibly cause this.

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Originally Posted by rsv4dan

Alignment? Excessive toe out on the rear could possibly cause this.

this is what i thought initially, but it was done 6 months ago. I guess LA streets might of toed out

Better to explain the problem, when i hit the gas and im holding the steering wheel straight the body of the car feels like it sway from side to side but the steering wheel is straight and centered in my hands

[MFKN3]

Sounds like alignment to me too

[White 13]

Could it be the limited slip working?

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well if it was an alignment issue, wouldnt it pull all the time? it only happens when i floor it.
Im running 255/275 35 pss tires on stock edc non zcp suspension. I have 15mm spacers all around and have no muffler in the rear, just straight pipe

[Malek@MRF]

Not enough rear toe in for the alignment and possibly too much negative camber.

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Originally Posted by Malek@MRF

Not enough rear toe in for the alignment and possibly too much negative camber.

sorry for the late response and thanks for the reply Malek. I have 255/275/35 pss tires on stock edc suspension running on 220s. What would be the proper psi numbers front and back and negative camber for the rear? thanks!
Note for street setup only