I'm not sure about pre-89s, but mine have throttle body injection and start right up at -25 without a block heater. The system is pretty much the same from there to the end of production. They are easy to work on, and there are dedicated groups to advise you about mix 'n' match. For super economy, you can use larger wheels and/or a low-ratio transmission from an XFI or an 8-valve model. Used ones often just need the world's easiest ring and valve job, but while you're at it you can drop in an XFI or aftermarket cam to pull the tall gears to fabulous numbers.
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