I hope not! I just switched from an 830 downleg carb to a new Annular HP 1000 on my 451 street / strip combo. Haven't ran it yet.

Holley's carb-selector tool landed on it for my combo, and a lot of guys here who's opinions I respect have suggested bigger is generally better.


LemonWedge - Street heavy / Strip ready - 11.07 @ 120