1# difference in Torque
6 HP
Nothing you will feel/notice at the track , definetly not on the street especially on a mild build 383
Waste of time switching between the two intakes - Stick with the Perfomer
Edelbrock Dp4b
Surprise! The oldest design produced the best average power of the dual-planes-of course we're only talking 1-3 numbers better, and that can be testing variance, but still, this thing wasn't at all bad. It's the first of the Mopar aftermarket dual-planes but has not been sold in many years. The DP4B designation means Dodge-Plymouth 4-Barrel, and the C4B (Chrysler 4-Barrel) is for 440s. This intake is most like the stock design, with the smaller of the two planes on the right side and feeding cylinders 2, 3, 5, and 8. The coil bracket is not in the stock location, but even so, many people who want an OE look use this manifold.
Price: Ours was $104.39 on eBay, but maybe the price will jump now.
Manifold height:
front 311/44, rear 411/48
Peak torque:
456 lb-ft @ 3,800
Peak horsepower:
445 hp @ 5,900
Power at 3,000 rpm:
419 lb-ft, 239 hp
Power at 5,000 rpm:
431 lb-ft, 410 hp
Average 2,500-4,500:
429 lb-ft, 289 hp
Average 4,500-6,000:
419 lb-ft, 417 hp
Average 2,500-6,000:
424 lb-ft, 344 hp
Edelbrock Performer 383
The Performer is the world's most ubiquitous intake manifold; you can order one from virtually any auto-parts chain. The Performer 383 (PN 2186) is a stock replacement part that's emissions legal for many OE four-barrel applications, and it has provisions for an EGR valve. Its carb pad will accept square-bore or spread-bore carbs. The Edelbrock Performer Package recommended for this intake includes a cam with just 204/214 at 0.050, demonstrating that our 237/242 solid cam is a little too big to match the ideal operating range of this and other low-rise dual-planes in this test.
Price: The satin PN 2186 intake is $189.98 at Summit Racing; a polished version, PN 21861, is $359.88
Manifold height:
front 331/48, rear 411/44
Peak torque:
455 lb-ft @ 3,800
Peak horsepower:
439 hp @ 5,900
Power at 3,000 rpm:
418 lb-ft, 239 hp
Power at 5,000 rpm:
426 lb-ft, 406 hp
Average 2,500-4,500:
427 lb-ft, 288 hp
Average 4,500-6,000:
415 lb-ft, 413 hp
Average 2,500-6,000:
422 lb-ft, 341 hp
Read more:
http://www.hotrod.com/techarticles/hrdp_...l#ixzz21OzHWOFS
