Weber setup 289

I'm about to do a major overhaul on my Webers and I have 6 of them, will use 4.
I believe that they came frome VW -Mazda -and others , so I do not know what nedles and ventury to use. I plan to make a output of 425 hp, My engine builder say that with that short milage I will gain on the engine it is ok ,but with the AFR heads. and I plan to use cam from Inglese.
Is there someone that have a advise on what needles and ventury that will be a good start , I'm blank on this one and need some help.
Rune

Rune

As long as you are going to get a cam from Inglese, fill out their form. They will give you some recomendations, from the information you give them, that will be very close. I haven't delt with them recently, but they have always been helpful in the past.
Regards Brian