Shorrock tech - needle choice

[Dr S]

I’ve got a hot Cooper 998, running 10.2:1 CR, 997 cam, usual strapped crank light fly stuff. 32mm * 28mm 12g295 head and pocket block. 1050cc

I’m running h2 needles in hs2 carbs with k and n filters and stub stacks.

Plan to drop to 9:1 with a decomm plate. Then install the blower.

So... what needle for start up? I’m running 1071S needles. (H2) Anyone running a blower on one? What’s the needle?