Hemi carb jetting

dart6 · Jul 4, 2025

Is anyone running twin Holley 4235 and 4236 770cfm secondary carbs on their 426?
If so do you care to share your jetting please
Stock crate motor with the marine manifold

GTX JOHN · Jul 5, 2025

As I recall, back when I ran my Factory 68 Hemi Dart,
The jetting that came in the factory 770 Holleys
was pretty close at Sea Level and a good start.

Is it a dedicated race car or a street car that runs thru mufflers
and real Air Cleaners?

dart6 · Jul 7, 2025

It's a street car with mufflers and air cleaners. The main jets are #74. It runs rich and fouls the plugs

GTX JOHN · Jul 7, 2025

Check you power valves as the jetting sound about right.

The cross ram intakes do not have the best street manners.

dart6 · Jul 8, 2025

The power valves are blanks

Dragon Slayer · Friday at 5:50 AM

Is this cross ram manifold or marine inline?

Fran Blacker · Friday at 9:02 AM

Dragon Slayer said:
Is this cross ram manifold or marine inline?

He said marine manifold.

Dragon Slayer · Friday at 9:50 AM

What does that mean? I just want to confirm it is inline. That make a big difference versus Cross ram carbs jetted for a cross ram.

Fran Blacker · Friday at 10:28 AM

Dragon Slayer said:
What does that mean? I just want to confirm it is inline. That make a big difference versus Cross ram carbs jetted for a cross ram.

Sorry marine manifold is inline. That's how they're advertised on ebay. If it's a real marine manifold you can run the Holley carbs with out turning them side ways.

dart6 · Friday at 10:03 PM

Yes inline marine

Hemi carb jetting

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