Tunnel ram or no tunnel ram...

Bakerlite said

I don't see many people turning their carbs sideways on a single carb intake LOL.. For most people it's just a matter of the carbs physical size that dictates how it needs to be mounted.
They've been used successfully both ways for decades..
I'd tunnel ram everything if I could!!!

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Actually, I’ve seen a single carb sideways. I have no clue what the benefit would be though. Unless you were leaving hard enough you couldn’t control the rear float. Turning it sideways would allow you to run wedge cut floats which MAY help with that. That’s only a wild assed guess.