So Frustrated!
That is your ticket.
Throttle body injection was used on those. It's an LA engine with little wear, 308 closed chamber heads, etc.
Brian, I totally spaced the truck sump oil pan. Yeah, that is likely going to be something that you will have to find for your Scamp, straightlinespeed. The pan on your 318 will not work. The main caps were larger on the 360 and because of this, the front and rear seal curved areas on the 360 oil pan has a larger radius stamped into it's shape, so you will need to get a center sump 360 oil pan, which are all over the place, anyway, if you don't end up with one on that '89.
Just be sure to pull the main and rod caps one at a time and heads and get a good look at the engine, before putting it back together. Just look for discoloration on the bearings, make sure they all look the same, look at the crank journals and check for the same, etc. Look at the cylinder walls for excessive ridge wear, check the valve seats in the heads, etc.