LS2 EFI 4L80E Swap help

[c10Sleeper]

Hi im just curious as in what other parts i would need for an efi ls2 crate and 4l80e automatic trans swap into my 79 c10 custom deluxe. I know ill need a wiring harness shorter drive shaft as the trans is longer than stock but what other components money is not an issue i plan to buy all parts and get it put in at a shop but I need to make sure i have all the parts so they dont have to order any thanks any help or info is appericsted.
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