The VDL owner (dan, I think) is awsome, he will talk to you even when he is at the races.

We took a motor to the Carb Shop in Ontario to dyno.
It had a brand New VDL 4-bbl on it.

we broke it in and made a few pulls and the carb shop guy said, I wouldnt change a thing, that carb is dead on.

we have dyno'd 2 other different VDL's (2 and 4-bbl) here in Ridgecrest and they both were also dead on as well.

I have a $1000 Biggs 620 4412, and we would rather run the gauge legal VDL any time