what are the performances differences between these two intakes?

[Dazecars]

Edelbrock performer
1984 GT aluminum 4-barrel intake

I was told that the GT intake produces more low-end torque and will get better gas mileage.

The motor getting one of the two intakes is stock and will probably never see any RPMs above 4500

http://www.dazecars.com

 

[maverick0716]

For what it's worth I installed a Performer RPM intake in place of my stock 1985 GT intake and went from a best 1/4 mile mph of 95.89 to 98.51. That's about a 20 flywheel hp gain. I also didn't notice much, if any, loss in low end power/torque. And that's with the intake that makes power from 1500-6500 rpm....the intake you're thinking of is idle-5500 rpm.

 

[gopher_6_9]

May not be what you are wanting to hear, but I like the Weiand stealth much better than the two listed.