I think in the long run you would be better trying to find a trubo engine and putting that in your car rather than cobble together and NA and turbo setup into a turbo engine. The valves are different in the two, they have different part numbers, although I don't know how they differ.

I think a tranmission and diff. swap would be a better way to go. And if you do that and then one day come across a good turbo engine you can still plop it in and be ready to go.

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