Opinions please
I have had several small cfm holleys (two oem under 600 cfm on small block fords) and i wasnt impressed. I would try the avs 2, because of the annular discharge boosters. I remember reading a test that showed an amazing low -end torque boost from that style booster.
For a much more "built" engine, a holley d.p. is my choice. (Actually, i would buy a quick fuel brawler).