383 intake / carb help for my 73 Dart

RustyRatRod said
Look, I'm not gonna argue. Don't take my word for it. Look up "Hot Rod Mopar Intake Shootout" and see for yourself. Are there better intakes? Sure. But you already HAVE that one and it IS a good improvement over stock. The intake runners are curved and that increases their length. That BOOSTS bottom end torque in comparison to most straight runner single planes. It's been a well known fact that the Streetmaster, while a single plane, IS a good intake manifold for a street engine. Very similar to the old Torker 383, it breaks the rules. It loses only a little down low. It does not KILL bottom end. It's just not true. Here's the link.

http://www.hotrod.com/techarticles/hrdp_0801_mopar_intake_manifolds/viewall.html

Look at the Holley Street Dominator for comparison. The two intakes are VERY similar. They just happened not to test the Streetmaster. It averaged 427 LB FT of torque from 3100 to 5000. That AINT killed on the bottom. This is as close to an argument as I have come in a bit. Believe what you want. There's the proof above.

I have to respectfully disagree with you on this one. Never liked the Streetmaster manifold. Although you are probably right, that with Tuning that combination should get Popdart where he wants to be with his car. The Holley Street Dominator is one of the best single plane manifolds, not comparable to the Street/RV Streetmaster other than looks. The Streetmaster is only good to 5k per Edelbrock. A stock cast iron 68 up manifold is more comparable to the DP4B or a Performer good to 5.5k. As for weight a 68 "301" cast iron manifold weighs 36-38 pounds. A Streetmaster weighs about 15 pounds, about a 20 pound difference. Not that I have seen a performance comparison between a stock manifold and a Streetmaster, I doubt it would top a 68 up manifold anywhere in the rpm range.