What you read is total BS. Someone needs to stop writing car stuff and go write science fiction books.
The only bad things will be water, dirt, or other debris getting into the turbo. You don't want road spray and other junk getting into the turbo inlet, especially rocks.
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89 LX. 363, single turbo, Super Vic EFI, TFS high port heads by TEA, solid roller, glide. Holley HP EFI. (exact combo varies)