cam/ heads/ intake

[straightaxle]

Noticeable cam ie "lumpy" am right?
stock cam smooth idle right?
What about stock cams that have a lumpy idle? like say a 1970 Corvette LT-1 cam? Lumpy idle and yet still a stock cam.
www.gmpartsdirect.com/performance_parts/store/catalog/Product.jhtmlPRODID=2597&CATID=826.html
Heads
On the ZZ4 crate motor they have Aluminum L-98 Corvette heads are they aftermarket?
www.summitracing.com/parts/NAL-12556463
Intake manifolds
GMPP sells a recasting of the 1969 Z-28 intake is this a stock intake too???
www.streetperformance.com/part/gm-performance-parts/intake-manifold/687618-14096011.html
I'm not trying to start a argument, just trying to understand the rules better.

[Kirk Ireton]

Noticeable cam ie "lumpy" am right?
stock cam smooth idle right?
What about stock cams that have a lumpy idle? like say a 1970 Corvette LT-1 cam? Lumpy idle and yet still a stock cam.
www.gmpartsdirect.com/performance....&CATID=826.html
Heads
On the ZZ4 crate motor they have Aluminum L-98 Corvette heads are they aftermarket?
www.summitracing.com/parts/NAL-12556463
Intake manifolds
GMPP sells a recasting of the 1969 Z-28 intake is this a stock intake too???
www.streetperformance.com/part/gm....8-14096011.html
I'm not trying to start a argument, just trying to understand the rules better.

A little explanation, hope this helps.

Camshaft:
The best we've been able to come up with for rating a cam, without dismantling the engine, is the lumpy/smooth -vs- rpm scale. We aren't going to bring out a tach and vacuum gauge so it's going to be a tech discretion call. Some 'stock' options will fall into a performance category based on these criteria.

Heads:
The tech sheet says "aftermarket heads" so anything that isn't manufactured and marked by the original auto maker will be considered aftermarket. If Ford makes an aluminum performance head, that's not aftermarket. If Summit makes a cast iron stock spec head, that's aftermarket.

Intake manifold:
Tech sheet says "aftermarket intake" be it single- or dual-plane. If your manifold has GM casting numbers you're good whether it is single- or dual-plane. If your manifold says Edelbrock then we start looking for number of planes.

Unfortunately there may be rigs that show up and hit the corners of these rules, getting classed either too high or too low. This happens at any track with any kind of racing. If you're building a rig to come to our races, keep the tech sheet in mind.

If you already have a rig and think you'll be classed incorrectly, you can run the ET Class and be 100% competitive with everyone in the class, regardless of how fast you are or how many mods you have (or haven't) made.

Hope this helps clear things up a little. Please keep asking if you need more, that's what the discussion board is for.

[straightaxle]

That is exactly what I wanted to know, I was not looking to "cheat" just looking on how to build my engine and be competitive, I am new to the rule book stuff. Thanks for the explanation.