HS6 calibration recommendation

[EGC50T]

Going to run a HS6 carb on my 1293 GT restoration, engine spec as follows

1293cc MG metro pistons so circa 10:1 CR
Oselli inlet with standard airbox
Janspeed manifold and exhaust system
Stage 4 minisport head
MG metro cam

Plan on using MG Metro needle

Anyone have a view on spring and needle to use ( car will be pretty standard otherwise and is a road car)

Thanks

[LuisM]

Hello,

Is your HS6 using a spring loaded/biased needle? If yes the BDL MGMetro one can be a start , then if lean try the BCE .
If carb uses fixed needle try an OA6 .

Cheers
Luis