Nicks Garage 383 build

Newbomb Turk said
Yeah, that’s what I’m running on 340 inches. Two true 830’s.

Since you can’t tune of course you can’t do it.

Also your love affair with door stop carbs causes you to make less power but evidently that doesn’t bother you.

Keep running small carbs and going slow. Keep that reputation going.

BTW and FWIW if my engine wasn’t a street engine and if I had the carbs I’d be running two 1050’s.

And it would make more power.
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YES!! THIS^!! You have to basically DOUBLE the CFM when switching from a properly built/tuned engine with a dialed open plenum single plane to a 2x4 tunnel ram. 340=2x750, 440=2x850, etc. We ran 2x660s on our FED rail 383 (Offy TALL tunnel ram) and I felt it needed 2x750s, we went to a 471" stroker and put a M1 (short runner, bigger plenum) tunnel ram on it with two 850s and I wanted to try 2x1000's on it!!