Been offered a new Offenhauser inlet manifold for my 340, which currently has an Edelbrock performer one. Would I be right in thinking the Offy one is superior to the Edelbrock one giving more Hp and higher revs/airflow?

 

Depends on it's operating standards..... So maybe or maybe not.

 

What Offy model?

 

Has Offy even offered a new manifold since the 70s?

 

Steve -

What Bob said is correct, it depends on the model and application. Offy was pretty decent back in the day, but Eddy has more current R and D. Unless the model and application are incorrect for your current needs, I'd be hard pressed to switch.

If the Offy and Eddy are similar in design, the odds on a noticeable difference will probably be zero.

Archer

 

Use to be a cool old shop to visit...... Have lots of fond memories running around in the shop looking at all there cool stuff.. Might have to drive by one day just to see if its still their.... Good Old East Los Angeles.. Use to street race rite on the 710 FWY Late at night rite round the corner from there shop..
Them where some fun days...