Driving an HEI Module with other signals

[Peter Gargano]

I take it you're refering to a 7 pin module as fig 3 in:

 ftp://ftp.diy-efi.org/incoming/7PIN_SCH.GIF

Programmer wrote:
> 
> 1. Just one little warning about that 7 pin module, if you run anything
> above stock compression and you have a knock sensor failure, it'll
> advance timing to the point of no return.

Is this because the module has built-in advance, and without an EST signal
this built-in advance is too wild for high compression motors?

> 2. The pattern from a GM pickup will always look more sawtoothed than an AC
> pattern.
> 3. If you're going to run anything above 5500 RPM, I'd look into someone
> elses HEI module.

This is 5500 RPM with a V8? (= 7,333RPM on 6 cyl, or 11,000 on a 4 cylinder)?
What happens above 5,500RPM?
Does this also apply to the 8 pin module (fig 4 in above GIF)?

TIA, PG.
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