Both are going to be expensive, I have a buddy that did the Turbo N/A conversion and he got good power out of it with a better low end than a Tll because of the higher compression. But the turbo n/a conversion takes ALOT of machining and the right tools. You basically need your own shop. If you do not have the time and money then dont attempt it will be a long and costly project. On the other hand the Tll swap is easier and probably cheaper because even with the N/a turbo conversion you need the new rear end and drive shaft and tranny if you want it to handle the power. For the Tll swap go with aftermarket wiring harness you dont want to deal with the wiring problems of the old one. Hope this info has helped.
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