Many six turbo headers put the turbo around the alternator/battery location but some six cyl imports' turbos are located down and back a bit. As mentioned a smaller turbo will provide adequate performance. Crossing engine also mentioned or a J-pipe type path after Y to the turbo may be considered or necessary, definitely consider an AFR gauge bung in exhaust after the turbo.
have fun
Buick/Garrett T3 Draw-thru setup on 250 Maverick - stock manifold and J pipe to turbo
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