What jets would you run...

[RRSweden]

...on a Holley 650 double pumper on a slightly-meaner-than-stock mopar 383?

I havent tried mine as is yet, cause I'm rebuilding the entire engine. But the ones sitting when I bought it was Primary: 69 and Secondary: 85

 

[furryfrog]

I would suggest to drop your secondary jet size so it is closer to what you run in the primary. To start, say leave the 69 in the primary and try a 70 or 71 in the secondary. I would recommend not to have the pri and sec jets that far apart.

 

[RRSweden]

That's what I thought too.

Thanks

I will look for a kit of holley jets...

 

[mentor70]

id run six size spread between primary and secondary jets as a starting point.

 

[Cornpatch MO]

id run six size spread between primary and secondary jets as a starting point.

I have done well with 68 primary and 76 secondary on a 6000+ rpm engine...............................MO