May 2017 Small Block Intake Manifold Test
These tests were designed to show the power potential of each manifold and each porting level.
This was NOT a stock small block engine. It had very good heads, a mechanical roller cam, and needed race gas. Yes, you could run it on the street, ¼ mile at a time. As you can see, the engine had the potential of 700hp due to the cam, compression, and cylinder heads. Later tuning brought the engine up to the 750hp range.
Don’t expect to see the same horsepower increases on your stock 318 with a hydraulic cam and pump gas. If the engine is good enough and needs additional air flow, this is what these manifolds and our porting can provide, and the numbers are relative as they were all tested on the same engine.
We also tested 1” and 2” 4 hole tapered spacers which we have found to make the most power differences. Our part numbers are [1” – HUG SS4150-1AL] [2” – HUG SS4150-2AL]
We tested the 340 Victor, Super Victor, and Indy 360-1 intake manifolds. We tested each stock with and without both spacers, and ported, with and without both spacers. 3 tests were averaged.
|
Manifold Part No.
|
Spacer
|
Porting
|
TQ/RPM
|
HP/RPM
|
|
Edelbrock 340 Victor
|
None
|
None
|
580 @ 5200
|
631 @ 6500
|
|
Edelbrock 340 Victor
|
1” x 4 Hole
|
None
|
584 @ 5300
|
648 @ 6700
|
|
Edelbrock 340 Victor
|
2” x 4 Hole
|
None
|
|
|
|
Edelbrock 340 Victor
|
None
|
Hughes Engines Street/Strip
|
602 @ 5400
|
671 @ 6500
|
|
Edelbrock 340 Victor
|
1” x 4 Hole
|
Hughes Engines Street/Strip
|
598 @ 5300
|
687 @ 6800
|
|
Edelbrock 340 Victor
|
2” x 4 Hole
|
Hughes Engines Street/Strip
|
599 @ 5500
|
693 @ 6800
|
|
Edelbrock Super Victor
|
None
|
None
|
568 @ 5100
|
652 @ 6700
|
|
Edelbrock Super Victor
|
1” x 4 Hole
|
None
|
592 @ 5100
|
661 @ 6800
|
|
Edelbrock Super Victor
|
2” x 4 Hole
|
None
|
|
|
|
Edelbrock Super Victor
|
None
|
Hughes Engines Street/Strip
|
595 @ 5400
|
687 @ 6900
|
|
Edelbrock Super Victor
|
1” x 4 Hole
|
Hughes Engines Street/Strip
|
603 @ 5400
|
702 @ 6800
|
|
Edelbrock Super Victor
|
2” x 4 Hole
|
Hughes Engines Street/Strip
|
605 @ 5400
|
714 @ 6900
|
|
Indy 360-1
|
None
|
None
|
572 @ 5300
|
656 @ 6700
|
|
Indy 360-1
|
1” x 4 Hole
|
None
|
593 @ 5200
|
663 @ 6800
|
|
Indy 360-1
|
2” x 4 Hole
|
None
|
|
|
|
Indy 360-1
|
None
|
Hughes Engines Street/Strip
|
600 @ 5600
|
705 @ 6900
|
|
Indy 360-1
|
1” x 4 Hole
|
Hughes Engines Street/Strip
|
606 @ 5700
|
716 @ 6900
|
|
Indy 360-1
|
2” x 4 Hole
|
Hughes Engines Street/Strip
|
603 @ 5600
|
705 @ 6900
|
| 
