Originally Posted by blueovalforever
How does the weiand compare with the software?
Weiand makes a multitude of intake manifolds and I don't know which one you have or intend to get. What I'm saying here is that a dual-plane, high-rise 4-bbl intake will make more power than any other manifold from idle to 6000.
For you small block Chevy guys,
The original Weiand Stealth, which they don't make any more, was an equal to the RPM, part number 8016. Here is an ad on Amazon for it and one on ebay. They must have found a stash of old stock somewhere. Any of you SBC guys wanting an original Stealth to fit '55 to '86 heads should jump on this....
Also, the original Holley 300-36 was possibly the best of breed and it isn't made any longer either. Don't be snookered into purchasing the 300-36S, it is NOT the same manifold.
The Edelbrock RPM 7101, Weiand Stealth 8016 and Holley Street Dominator 300-36 were all patterned after the dual-plane, high-rise used on the Z-28's and LT-1's of the late 60's and early 70's. Those original aluminum Chevy manifolds were cast by the Winters Foundry and will have the Winters "snowflake" cast into the aluminum. If you can find one of these, you have the original "good guy" small block intake.
Professional Products makes a knock-off of this design also, called the Typhoon and sold under part numbers 52021 for satin, 52020 for polished and 52022 for chromed.