dan0617 wrote:
I was looking at going Superram but was afraid it wouldn't work well enough at 6200 rpms on a 383 with decent cam (although I was running a 350 at the time I had future 383 plans). Also got scared away by the removal/install time and headaches. I then was looking at going Miniram but was told that they have problems with some cylinders going lean on nitrous use (still have no idea if that is true or not) and was afraid that 6200 rpms wouldn't be enough to see the true benefit of the Miniram. I then decided to go between the 2 and get a Holley Stealth Ram. I love it. Great street torque, great at the track with the rpms and cubes that suit me. I hear that USM (or something like that) is making HSR intakes to fit under the 'vette hood now. I had to go with a custom plenum. The HSR might be worth you looking into, it is easy as pie to install and it works great. I also like that you can install the base, then shine a light down the runners and see how well it matches up to the heads. Then you can slide it back and forth just a hair before tightening or you can remove it and port match it. When all is good just 4 bolts puts the plenum on.