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based on my own use of one on an 383HP in a street car and the Hot Rod test, stay away from the Holley Street Dominator intake for sure if you want low end grunt. Don't know anything about that old Weiand.
Why's that?
I am running one now it pulls great for me in my 383. The holley SD intake rated just fairly lower than the Edelbrock RPM that one of mags tested a few years ago with a whole bunch of intakes on a fairly vanila 383 IIRC. If that's what you have it's not a terrible intake.
Ohh here it is...hot rod did it with a bunch of manifolds. http://www.hotrod.com/techarticles/hrdp_0712_mopar_intake_manifold_comparo/index.html
at 3000rpm the SD is down 17ft lbs to a tm6, down 27ftlbs to an rpm perf, and down 37ftlbs to a plain performer. Imagine what those numbers would be at 2500rpm? That's a serious gap in tq for a street cruiser.
The SD made great power up top but gives up 17ftlbs more at 3000rpm than any other intake tested. That's exactly how it felt on my engine vs the stock intake and rpm perf. I can see using a SD on a stroker or a race engine, but I can't see using it on a street car based on my butt-o-meter. Maybe you should try a torker or rpm perf on yours, you might like it even better if it's a street car.
Last edited by furious70; 06/03/09 04:37 PM.
