Electric fan????

A 34 amp alternator may not be up to the task like at night in the rain with the lights, heater or A/C, wipers and the Fans on is what i am trying to say.

Spot on.
Mine is running
2 x 16" fans @ 21 amps each
Water pump @ 15 amps
Electronic controller for water pump @ 12 amps
Holley blue @ ? amps
MSD 6AL @ ? amps
And that's before you allow for all the routine stuff.
I upgraded the charge wire but a 100amp alternator still couldn't cope at night with the lights on.
I'm now running a 120 amp alternator which does cope but it's obviously marginal.