1951 chevy dual intake hop up

[bobg1951chevy]

I have a 1951 Chevy 235" in place of the 216". It has a three speed, stock 4:11 rear end.

It currently has Fenton headers, Smitty's and a full dual exhaust system.

I purchased a Offenhauser dual intake manifold for two rochester single bbl carbs.

Has anyone out there performed this addition?

Did the carbs have to be rejetted?

Any other assistance or ideas would be appreciated.

Thanks,
Bob Gee