bro honestly, ur denying the inevitable, u will go full circle b4 going finally to a 4age silvertop or blacktop...don't waste anymore cash...just think back how much u've spent on the current engine and the 4afe that ur planning on converting, than compare with the 4age's....
Thanks, ice, you are right, changes before a real change makes not much sense!
But at time, I'm running circles , b/c I find more and more out, that the vacuum system of my 3A is almost all of the problem.
The 4 AGE is not so easy to get, I 'ran into' the 4 AFE accidently. It's a good offer (I think). For 27k Bt in the car. But has anyway a
, 'cause it is auto. I don't like the older 3 or 4 gear automatic's. I didn't know that, when I posted the question! If it wouldn't, I would have done the deal, allready!
At the moment, I'm checking carbs, and, btw., looking for manual gear boxes. Not easy, to find anything down here, on Phuket. It's Pic-up/Truck territory! I can get as many diesel engines, any (nippon) brand, I want, but almost everything else, you have to ask in BKK for it.
Ok, afaik. Maybe there is, but I'm not be able, to find!
But back to the carb: Watched 3 carbs 'for my car', all different! Different in the amount of vacuum-connectors!
Looks (to me), that the vacuum system of my car got 'cleaned' up, every 'unnecessary' part axed out: " 'kaput' and expensive? don't need! reducing damper opener, aja, ...no, easy doing, idle a bit up!" And so on.
You know, what repair shops here always say, after you asking for help, 'cause your carb is....?
"Oh, yes, change to 4 AFE, can do" It's their first offer, so I don't have to wonder, that it is under my Corona's hood, like it is
Lucky, I got the Toyota Manual for the A engines, this weekend. Ok, could buy it, need a bit time, to get it!
If I have to guess, what's happened next, I say, I'll try to understand the vacuum system of this bloody carb/engine, first. Not, that I really want, but b/c there is no 'perfect' other option. I'm not happy, with putting a automatic in this car, and I'm not sure, that I can find a manual gearbox, soon, that fits the 4 AFE.
And the 4 AGE Story would need to check with/in Bangkok. And would only make real sense, if I would do all the other needed changes, in the same time, too: suspension, brake's, shock's.
But yes, you're right!
Thanks, again!
I suggest you make a trip down to M'sia to find yr parts. You only have to travel to the Kedah which I think should be good enough to source for the parts you need. 
Heck, you may even get a mechanic there to get it done up for you before you return to Thailand.
