I have a 1988 acty 550, 4apd, 2wd4wd, ultra low, low reverse, locking differential, and no air solenoid I can find on my carb. my acty felt like it needed a tuneup for awhile. But I’ve been driving it daily. I ran outta gas, and fueled up but had no power in my forward gears, Aside from 1st which felt fine. *I can normally easily crawl up my driveway in 1st and the hill below my house in 4th* Replaced fuel filter, plugs, wires, plug wires don’t feel like they reach to snap on the plugs no matter what I try. Felt like it helped but still felt like it was sticky engaging the gears so I: cleaned the dist cap, cleared the cat, pulled the carb and cleaned jets. One of the flanges? In the carb was a bit sticky closing, but after cleaning the carb it moved smoothly. Found a broken grounding strap from Fran to engine. All felt back power back, aside from 4th felt whimpy. found a tiny oring I think maybe goes to the fuel cutoff solenoid, so took carb off and put oring on the solenoid. Found 3 disconnected vacuum lines i reattached. Drove and overheated for the first time ever. Temp gauge all way to right. I put I didn’t tighten the top nut (1 of 2) securing the carb to the engine. As I found our by the pouring coolant like my truck was about to give birth. tightend the carb back up. Don’t know how to check the choke. Tried burping coolant system but couldn’t, replaced the thermostat, Had to manually all coolant to top of engine and hoses to burp. But burped that shit. The giving it a little throttle the bleeders on top will slowly weep coolant, ones by the spare tire will pour and spurt if the bolt is completely out Temperature is good. No big leaks aside from the constant oil leak from idk where? All gears are there but 4th has no power under load. Actually 1-3 also feel a little rubber-bandy when they engage, but they eventually get with it and I think I have full power in those gears…. Then a few hours later. I drive home and this thing takes a million years for 1st to give me any power and second and third and have to take my hill in 3rd instead of 4th. I then couldn’t make it Up the driveway in 1st, had to get a run in reverse. No power in forward gears. Also found this carburetor looking oring or gasket it’s tanish brownish hard plastic looks about the size of the carb intakes or similar. …. Any advice?