higher performance carbs and boost for my 1.5 jb?

ok guys so basically i have a GX with a 1.5 jb engine in my mk1 golf and it runs sweet, has torque for days, pulls like a train thru all gears (except E obviously lol)

Now i want to do something with the engine, ive looked and priced up the usual 2.0 16v/1.8 20VT etc etc which i think i am pretty capable of doing, but i want something different not nessacarily fast/high powered but a nice drivers car! so though id give myself a challenge and stick with what i have and improve upon it!

i did some research on tuning the JB there was the obvious port and polish, performance exhaust (which i planned on doing with the resto anyways) and re profile of the cam. So i did abit of research, and i have found that the 1.5 exhaust manifold is apparently very restrictive and they benfit from a nice free flowing 421 which would free up the top end abit,

so taking all this into consideration the engine in my head went something like this

1.5 jb (70bhp, approx 85bhp per tone)
port and polish
421 manifold
performance exhaust
panel filter
performance cam

this would probably make for a pretty fun car but cant really call it different, so i had a rethink about really fun small cars id driven/seen/wanted, which is when this (probably ludicrous) idea gets interesting lol nearly every car i came up with either had a big engine conversion (which ive already sort of dismissed) or boost! ie nova redtop, clio with the volvo turbo, mk1 golf 20vt/abf, toyota galanza turbo, lupo 1.4 16v m45, vw polo g40 the last two got me thinking! after more digging i found that my current engines compression ratio is not far from the g40 (py code iirc)

JB engine standard is 8:2:1.
PY engine standard is 8.0:1.

would the standard internals handle say a g-ladder or even an eaton m45 on low boost (standard g40's run 0.72 bar and the lupo m45's seem to run 0.5-0.6 bar so in the region of these figures?)

then the inevitable fueling issue comes into play, i could improve this by replacing the pooberg 1b3 with a nicely matched bike carb install, say yamaha fzr 650 or honda cbr600 idk?

ive been told in the old days old blowers didnt get along so well with carbs but imho bikes almost perfected carbs and didnt jump ship over to injection so should in theory wrok better?

anyone got any ideas/help?

please note my challenge is to make a fun engine to drive using my existing lump! im not to bothered about speed and bhp figures

sorry 4 essay and cheers

bit more digging had thrown this up!

Supercharging Through Bike Carbs - Engine - RHOCAR - The UK Kit Car Club

so it looks relatively straight forwards!

what sort of pressures do you reckon the jb standard internals could run?