[quoteThink about that Holley for a second. Move the throttle and it opens primary and secondary bores with both accelerator pumps dumping fuel.
The TQ opens the primaries and if the draw is strong enough it will begin opening the secondaries and back off as the load is eased. The pump will shoot fuel but not to the degree of the Holley.
When I was playing with carbs I could normally get the best performance (butt dyno) out of a Holley. However, once tuned to performance the Holley was way behind the AFB and TQ when it came to street manners.
Since my cars are street cars I did not run Holley carbs for long.

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Not true on a holley dp...the secondary throttle blades and acelerator pump do not begin to open until the primaries open 40 degrees...