[Amps] GS-35B cooling blower

[F5ICN]

Hello,

I finished building a VHF amp with a GS-35B.
I'm looking for information on the blower to choose to ensure proper cooling 
of the tube at rated power.
I have not found in the datasheet of the tube how many m3 of air needed for 
proper cooling.

Can you help me find this information ?

I have a EBM-PAPST G2E108-AA01-75 the datasheet says 155 m3/H is it enough ?

There is a smaller one with 80 m3/H called G2E085-AA01-01 what do you think 
about it ?

Best regards

73's F5ICN
Alexandre