thanks for all your responses.. i appreciate it.
well here's the thing about swaping engines. i'd love to swap for b18ft but there's a catch.. every modification we do on our cars in our country has to be homologated to be road legal.. that means you have to have TUV paper in order to proceed with homologation. Installing a volvo (even tho it's a renault) engine and make it legal is impossible. We can install in let's say a 5 whatever engine it came out of factory with. So i could install in my gtt: 1.1 campus, 1.4 n/a, 1.4 energy, 1.7 n/a, 1.6 diesel and THAT'S IT. 1.8 16v didn't came installed in any 5 from factory there for impossible to make it road legal.
We can ofcourse install it and drive around illeglay, we can even pass MOT if you have any connections inside, to overlook the engine mod...but if any copper finds out or sends you to a detalied MOT (where he sees fit) and they found out you installed and drove around with illegal mods, your car looses it's registration, you pay 400€ in fines and in worst case scenario, your car gets crushed.
Every single modification we do to our cars.. doesn't matter if it's changing bumpers, lowering, installing wheel spacers, etc etc... it has to be homologated or you can't pass a MOT (if you don't have any connections) and cops can mess you up pretty bad with fines. So my only option is to do some internal mods on a original engine. Since they don't have rolling roads on MOTs to actualy check if you are running OEM KW.
That's how it is in our country :/ Ofcourse we do run around with illegal mods and get away with it.. but it's reasky.
So F7P/R, F4R, B18FT lumps are out of the question. And besides i'd like to keep my car as original as possible. Even tho i absolutly hate carbed engines and want to EFI it ..it has to be done that way

Right now EFI modding C1J is abit out of my budget and besides it's hard to fine a decent tunner to fine tune the engine once it's converted.