2.7 E Weber setup

[pemz0r]

I have been running this carb setup for about 6 months, and the car ran great, or at least what I think. Until I did some research and found out that the engine might be running lean.

CURRENT CARB SETUP
Venturis: 32
Main Jets: 125
Idle Jets: 60
Emulsion: F26
Air Correction: 180

MY ENGINE
2.7
E Cam
9.5:1
SSI
M and K Exhuast

The setup that ************ recommended was to run this, but I think the Air Correction seems low. Thoughts?

Venturis: 34
Main Jets: .145
Idle Jets: 60
Emulsion: F3
Air Correction: .140

Thanks

[Steve@Rennsport]

Put 160 A/C's in there and you'll be good.

[pemz0r]

Steve,

Do you think 140 is too small?

[pemz0r]

I installed this combo

Venturis: 34
Main Jets: .145
Idle Jets: 60
Emulsion: F3
Air Correction: .140

and the car felt very sluggish, so I decided to put in the AC at 180 and it improved but it doesn't have that "POP" from the previous setup

Venturis: 32
Main Jets: 125
Idle Jets: 60
Emulsion: F26
Air Correction: 180

I think I am going to go back to this and see if I can get that "POP" back.

Does anyone think they might know why it might not have that pop?

[Steve@Rennsport]

32mm vs 34mm venturies.

[pemz0r]

I reinstalled this setup

Venturis: 32
Main Jets: 125
Idle Jets: 60
Emulsion: F26
Air Correction: 180

and the car runs a lot richer and it has better acceleration then the recommended setup. How is that possible?

Venturis: 34
Main Jets: .145
Idle Jets: 60
Emulsion: F3
Air Correction: .140

[Flat6pac]

The pop or back fire through the intakes usually means you're running lean.
Bruce

[rennzeit]

I think he meant figurative pop, like responsiveness.

The smaller 32 venturi gives a stronger vacuum signal to the main jets, pulling more fuel earlier in the revs. So even though the main jet is smaller, it is providing more fuel.