Carb spacer

[Pentarockstar]

mildly modded 69 340 swinger. Has LD340 and Holley 650 DP. Pretty tight clearance between air cleaner and hood. Pretty sure I can get away with 1/2 spacer. Any ideas on type (open, 2 hole, 4 hole) and brand?

Thanks!

 

[RustyRatRod]

Divided two hole will match the intake manifold.

 

[roccodart440]

The only spacers I run are HVH super suckers. Reverse ball milled. I've never seen an engine that didn't make more dyno hp and tq after bolting one on

 

[Pentarockstar]

HVH is bad ***, but a little outside my price range.

 

[mopowers]

HVH is bad ***, but a little outside my price range.

Is this a decent alternative for folks that are budget-minded?

Speedmaster PCE120.1008 Procomp Electronics CNC-Machined Carburetor Spacers | Summit Racing

 

[Brooks James]

If your spacer is a little too tall try an Edelbrock dropped base cleaner

 

[69FBCuda]

69 318 Barracuda, Holley 750, Air Gap, stock mounts and engine placement. This combo works with room to spare.

Edelbrock 9266 Heat Insulator Gasket
Air Breather-new Edelbrock 1223

 

[Pentarockstar]

@James Brooks: Thanks for the idea! I will try it.

@69FBCuda: That sounds like a mean combo. I like the idea of a heat insulator. My car does run better when it is still cold.

 

[Capt46]

I also use the heat insulator on my 340 made huge difference on fuel boiling.

 

[Bewy]

A 1/2" divided spacer will make very little, if any, difference you can feel. An open spacer connects both plenums..& the engine pulses. May be a little more top end, with a slight loss at the low end.

Spacers need to be tested, results vary per engine.

 

[33IMP]

What I took away from the Engine Masters spacer test was:
Use a four hole on a single plane intake.
Use an open spacer on a two plane.
As always, your results may vary.

 

[69FBCuda]

@James Brooks: Thanks for the idea! I will try it.

@69FBCuda: That sounds like a mean combo. I like the idea of a heat insulator. My car does run better when it is still cold.

1.5" to spare

 

[33IMP]

Is this a decent alternative for folks that are budget-minded?

Speedmaster PCE120.1008 Procomp Electronics CNC-Machined Carburetor Spacers | Summit Racing

Id sure give that one a shot, at that price.

 

[Pentarockstar]

Engine masters is awesome! Real information done in a reliable manner that anyone can use.

No i doubt a spacer is going to turn my 340 into a blown Hemi. But if i am going to use a spacer to help with a hot carb, I might as well get something that will give a little pep along the way.

With that said. I would like to get the tallest spacer I can.

Thanks 69 FB Cuda for info on how yours fits under your hood.