[Barry_R]

Its up to Dave to reveal all his data. I can say it's larger than a 427 by a good amount, with some decent heads. I suggest that you consider vacuum seconday dual quads as being a single double pumper, and effectively ignore the secondary side for sizing and driveability concerns. They often barely open on the dyno only providing overly rich off idle fuel - we "wire tie" them to see WOT power. You might want a really light secondary spring for these to really deliver their full airflow potential.

We are leaving the choke towers as a customer option - some guys will want to be able to add a choke. Undy is cutting his down. My preference is to leave something of a stub tower around the opening to keep the bleeds out of turbulent air.

These have all the normal "Marvin" tweaks - Marvin and Marty from QFT were bosses, co-workers and friends during my eight years at Holley - they were at my wedding - and bought lots of (deleted because the statute of limitations may not have run out) the night before - - many years ago...

These, once fully developed, will be a production alternative to the repro carbs...