Finally get to pretend I am one of the cool kids - Holley kit swap

Out of everything that I've thrown against the wall...Changing the slots is the most appealing to me. This could be done in 30 minutes, without any visual changes. You're only shooting for 1/8".. take 1/8" off the the vertical slots (blue) and then add 1/8" to the other side of the slot (green). Do it on both mounts to the pass side. Done! Test fit before welding anything, naturally. And man, the reality is.. you'll never go back to an LA, so any mods you make, won't really have a future effect. Plus, if you did drop one back in.. shifting it right 1/8" will have zero effect.

Welders tip in case you don't know.. You can clamp a piece of copper behind something and use it as a backer. The weld won't stick to it. Build up the edge, knock the copper off and then finish grind.

I agree with 340sFastback and sometimes you just gotta come back to it.. but if your brain is anything like mine.. it won't let go

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I don't think that would work. The mount on the k-frame has a flange that captures the washer. The washer and flange on the mount are what actually keep the motor from lifting. Not sure there is room for the washer if I move the slot over. I could grind one side of the washer down to fit but that feels iffy as the washer would have to be oriented from then on when bolting the mount down.

I agree that I don't expect to ever go back to an LA.

One thing that hadn't occurred to me until this morning is I haven't even tried to twist the motor. It could be that it isn't square in the chassis and my 1/8" could all be because the header is pushing the back of the motor over. Something I now need to look into before I do anything. I might have to pull the motor and remove the header and see how it lands after that.

And yes, my brain is such that I can't just let go of this.