Change your torque curve, tune via manifold.

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IQ52

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Just finished the latest 496. Well it looks like we'll have to bite the bullet and get some stock port window, aftermarket single plane intakes so we can see what these engines will really do. All of our really good single planes are ported to something between max wedge and stock. So anyway, that being the case, here is what happened with a 496 we finished using the owner's Edelbrock Torker II, the Torker II and our 2" spacer and our Edelbrock Performer RPM w/o any spacer.

Street engine 91 octane
Pro Systems 1000cfm 4150
Manifolds listed above
Our ported Edelbrock RPM heads, 2.14/1.81 valves
Lunati solid street roller
Eagle 4.15 rotating assembly, Diamond pistons, 10.3:1

RPM...........TKR II ...........TKR II + 2" SPCR.......Perfmr RPM

3000...........514 lb-ft.............517 lb-ft............543 lb-ft
3100...........517....................525...................552
3200...........544....................555...................579
3300...........588....................575...................603
3400...........590....................590...................615
3500...........608....................610...................624
3600...........612....................620...................632
3700...........610....................611...................640
3800...........606....................619...................632
3900...........607....................613...................633
4000...........607....................614...................630
4100...........610....................620...................628
4200...........608....................616...................624
4300...........600....................613...................615
4400...........599....................611...................604
4500...........605....................611...................604
4600...........609....................619...................600
4700...........611....................619...................609
4800...........617....................621...................605
4900...........620....................634...................603
5000...........616....................626...................612
5100...........620....................625...................609
5200...........612....................627...................599
5300...........611....................615...................605
5400...........600....................621...................601
5500...........595....................605...................594
5600...........589....................593...................586
5700...........584....................589...................578
5800...........574....................588...................565
5900...........568....................578...................557
6000...........554....................563...................540

RPM & HP

5000...........586....................596...................582
5100...........602....................606...................591
5200...........605....................621...................593
5300...........617....................620...................611
5400...........617....................638...................618
5500...........623....................634...................622
5600...........628....................633...................625
5700...........634....................639...................627
5800...........634....................650...................624
5900...........638....................649...................626
6000...........633....................643...................617

I guess none of the combinations are going to feel very slow.
 
Nice nunbers... How well do these work,on a healthy stock stroke 440,(done right,906/915's worked..)?
 
Is the performer an rpm, or an rpm air gap? Or do they make that for a big block?
 
For big block Mopars there are no manifolds named "air gap" as all of them are an "air gap" design except for the Max Wedge Cross Ram manifolds.
 
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