IMO.
I would build a turbo 250 engine.

Less hood clearance w/a 292.

More work to install a 292.

A 292 will get worse gas mileage.

I would leave it an automatic & use a 200R4 or a 700R4.

A stick is fine also, your preference.

My 2 cents.

MBHD


12 port SDS EFI