So I bought a 1991 1.6 Mazda Astina 323F (the one with pop-up headlights) and I'm thinking of doing a swap maybe one year down the road after getting all the vital stuff sorted out.

I'm looking at the B6T, but I have a few concerns.

1. Would it fit?
2. Is it carbureted? If not, will the wiring for injection cost a bomb?
3. Will JPJ decline the endorsement because of a stock turbo charged engine?
4. Is it even worth it?

Also, open topic for the Astina in general. Love the look and overall design of the car!

I surprised people still willing to get cheated doing these

Most just get a new car that perform equally well and no hassle , throw a stone and anry csr will do 200 on the highway , in comfort and quietness

Yup, on the JPJ TnC webpage (forgot where it went) Ford and Mazda is considered same same.
Though on Wikipedia, almost none of Ford's engine suitable for 323, newer Mazdas maybe can swap but not for mine.

There are no mechanics that do proper job, claim they can , but have no idea what to do.

In the end , engine seldom runs properly , full of warning lights, overheating , leaking oil ,

All they do is trial and error, change this maybe change that
Again nobody will do a proper job, just hacks that are wasting your time and see that big water fish arrive with daddy support can chop maximum .

If father willing to fork out close to 15k , you can buy hot hatches already . Fiesta st,

Seriously try out the new generation vehicles, it's a buyer's market now , if you take 2016 model, discounts of 10,000 or more is not unheard of

Absolutely none, nothing can beat a brand new engine vs a completely clapped out, hacked up, mismatched engine with unknown history being jammed into an even older vehicle

Everything is just so so tired , worn , it's not worth the money , time and effort.

One of my car is a Wira 1997 , carb too , but manual version

rm50 can drive me 350km inclusive of Expressway & not so jam town driving.

if your gearbox kong, worth converting to manual if you intend to keep this car cause Wira parts is cheap & aplenty

For TS, keep your passion going cause I also bought a used E46 & also have in mind to transplant a bigger capacity engine if the current engine sucks , I actually have a few options , either a halfcut BMW or 2Jz , endorsing will be done via the mech cause they will provide all in 1 service........& I just need ready the Cash 

2Jz including everything will cost you abt rm20k into a Beemer

Beemer esp E46 is a good car to transplant a highspeed engine cause its  heavy car & the weight distribution is really gooding but bewarn the ECU & wiring could be a big issues if the mech is not a specialist on this kind of transplant.