If the motor is basicly stock The offey would be in your better interest.esp with the 2b carb. Like
Lgriffin said the Offey is more suited for Low to
mid range power. If you can find a 2b adaptor and
do not want to stake carb plates let me know I maybe able to help you.
Does the Economizer 2 bbl have the same Base(bolt
patteren) as the 350 & 500 cfm holley?