AMC HEI unit bulltear

[rocklaurence]

I put in the HEI on my AMC's because the Spark module is going to melt and/or the resistor wire is going to catch fire! Ill be spending $48 for a module or fixing the wiring harness. So, I'd rather take my chances with the China HEI. Like I said, I've got almost 5 years on the one and 3 years on the other. I'm old enough to remember when everything made in Japan was junk

[k13evin]

So whats the best mechanical advance for it. And what should the vacuum advanced be set to. For better running

[babywag]

So whats the best mechanical advance for it. And what should the vacuum advanced be set to. For better running

http://www.ifsja.org/forums/vb/showthread.php?t=84586

[k13evin]

So where does the vacuum advance hook up exactly
Hook to a carb port or off the manifold like the break booster?

[Probesport]

did yours have the little wire retainer plastic cover that screws on?

Nope, I did on my old big cap but this came stock gm

[Probesport]

So where does the vacuum advance hook up exactly
Hook to a carb port or off the manifold like the break booster?

Your carb should have a small port on front for it, and if available use the timed vacuum port.

[Ristow]

no,not the timed port. stick it on the small fitting on the brake booster fitting. use manifold vacuum.

[k13evin]

OK. I thought it was that one. Thanks ristow

[Probesport]

So what's the reasoning behind not using the timed port?

[will e]

The timed port is cheap Chinese vacuum, the manifold port is USA made vacuum.