I will most certainly be going back through the carb before I back on the motor. I will be tearing down and boiling it in lemon juice and water like I have done with motorcycle carbs to make sure it is as clean as possible. Then install a new carb kit.
I was considering a junk yard motor but around here the few that are around they want 12 to 1500. For that price I will just go with a marine long block for the extra few hundred.
Looks like I will be using a 4.3 engine from a salvage yard. Been finding them online for between 6 and 800 including shipping. I will go through the motor after it arrives since I will have to replace the head gaskets anyway. Not that hard to remove the oil pan and check the bearing and clearances while it is on the engine stand.
I am found a few used engines for a decent price for about $600. Should I stay in the 2000 to 02 range. Would it be better to get one from a Silverado or the s-10 or does it matter?