Zenith's!I had some vents machined for my 3.0 and re jetted as per Anderson's recommendations and came out very close to perfect. Tweaked them and now they scream (along with the rest of the car) Have not touched them in a year. Very stable, no moving parts, cheap to purchase, rebuild kits available, air cleaners/throttle/manifolds are the same (Dimensions) as the Weber/pmo set-ups. Great looking and made in Germany!
What I'm running now:
Main jets 1.60 solex jets from ebay (alfa 1750)
Idle jets .70 Same ebay guy
Ventures 34mm machined aluminum from pcar9119 on this site or
pcar9119@yahoo.com
34mm PMO intake, K&N water shield air cleaners, stock Zenith linkage, pmo fuel regulator.