Steering pull during acceleration

[kenshinS14sks]

I had recently changed out my rack and pinion due to leaks and torn boots, and my mech said they didn't bleed the air bubbles since normal driving would clear that up (including the "rumbling and shaking" during full turns at stops)

It did this before the rack and pinion change out but it was slight even afterwards...and is getting worse. The pull is always to the right when I'm on the accelerator and I have to steer a bit left, and between shifts, the car will straighten out again causing me to weave if i don't remember to anticipate and straighten out the steering wheel. When I'm cruising or in neutral, the car runs straight without any adjustments to the steering. So only during acceleration...and more acceleration = more pull

At first I thought it was an alignment issue so I went and got that done... According to them, the problem was radial pull but from my research, then it should still be pulling even when I'm cruising off the throttle

Do I just need to bleed it again or is there another problem that I'm not looking into?

Sorry for the long and possibly confusing post... I did the best I could in chronological order.