Pictured are the two different types. Is there any performance difference? The one on the right is nicer to look at.
There are two types of Holley Discharge Nozzles
- Thread starter Fran Blacker
- Start date
66Satellite47
Well-Known Member
Ya, the long version shoots a bit deeper into the venturi with a large carb.
ckessel
Well-Known Member
Those were used on the 660 tunnel ram/dual quad race applications. You can get them separately from Holley. I used use those on all my carb builds as they have that hole for more flow.
66Satellite47
Well-Known Member
Ya, I used the high flow shooters on my 850 DP single carb and my 650 DP's on my tunnel ram. Even with the smaller squirter size. More flow capability can't hurt.
Last edited:
I'm trying smaller ones on my crossram. Both carbs have .035's going try .028's since it supplies 4 cylinders. Lot of gas going in until it warms up. Black plugs, been restricting fuel idle feed with limited success.
66Satellite47
Well-Known Member
Shooter size is sure a trial & error deal. The pump cams can make a really big difference too. More experimentation.
Have a white cam in there now.
66Satellite47
Well-Known Member
You may want to try other cams along with different shooters. Depends on how the response is.
65hemi
Well-Known Member
- Local time
- 3:01 PM
- Joined
- May 21, 2011
- Messages
- 1,249
- Reaction score
- 3,496
- Location
- Winnipeg, Manitoba
Fran, for comparison, on my cross ram I have 37 squirters, and use the pink cams on the #1 hole.
My carbs are the repop Holley race hemi carbs.
My carbs are the repop Holley race hemi carbs.
Most newer carbs worth their salt come with the high-flow screw, but standard pump nozzle. Whether it makes any difference is debatable. I personally didn't see any difference using the tube-style nozzles, in response or A/F readings. That isn't to say they're a total crock of bull though, I'm sure they serve a purpose in some specific applications..
66Satellite47
Well-Known Member
I used the high flow screws on all my combinations. On my 650 DP tunnel ram carbs I used the standard shooters, on the 850 DP single used the extended version. I needed a fairly large variety of shooter sizes to find the right one for your combination.
Similar threads
