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My ammeter and voltmeter suddenly went hard right and I'm trying to figure out why. I've seen a previous thread but my issue seems to be different. I've watched countless videos on alt and vr testing but still non the wiser. I have two alts. On the bench with the field direct to negative I get...

Thanks Deathproofcuda. Great explanation - puts my mind at rest.

As I understand it the brown wire for starting connects directly to the coil. If the ballast is used, the blue (run) connects to the brown through the ballast at reduced voltage. The brown is the only connection to the coil. I have directly connected the blue and brown, in theory passing full...

70 Challenger. 512 stroker, 10.3 compression, stealth heads, ultralight crank, sixpack, modest street/strip Comp hydraulic lifter cam, headers (unknown brand), Mopar electronic ignition, 440 Source dist, new coil, new ballast (4 pin), 727 trans. Engine running fine but trying to understand why I...

Carbs back on and no difference. Shakes at idle - sounds great when I punch the throttle. When running (on choke) no fuel is being released above the throttle blades on all carbs at idle. When I stop the engine, disconnect the rods and look down into the manifold it is WET with gas. Confirmed...

Thanks Challenger RTA. Very useful info. I may have missed it but can't see any ref. to the little plate that is on my centre carb which is a 4144 -see pic from the Holley website. Can't see it in any of the illustrations. No idea what it's called or what it does. The little mechanism under the...

Update. Hacked off 2 x 1 oz weights from converter. Flex plate is a neutral one. Although I'm sure it was the right thing to do there is no noticeable difference in the shake. So, back to the six pack. I've had a couple of backfires and fuel spits when starting so I've taken them off (again!)...

Yes, did that - couldn't notice any change -thanks.

Thanks. I'll get to it at the end of the week.

This is new to me. I remember that my converter had weight(s) on it. To be clear before I start hacking do you mean ALL 6 of the weights in the pic or just the two at 4 and 5 o'clock? Is the "pin" at 4.30 the flexplate locator?

As I didn't change either. It sounds like this could be the cause of all my problems. So I need remove any weights from the converter (would they all be on the front which I can access). I will try this first (at the end of the week) and hope that the existing flex is not contributing to the...

Regarding electrical I haven't found anything wrong so far but have decided to get new distributor/ecu/coil anyway. I won't get it until July when I visit US due to punishing freight cost and import taxes here in UK. Plugs and leads new.

Wow - thanks for the detail. I think I have covered most of this. Compression all about 190 - not done leakdown. New fuel tank. I bypassed the fuel filter and Mopar fuel return thing. Have a simple pump inline which delivers 5 1/2psi. (I use this to prime before a cold start). Not measured...

Hard to be clear about this. Stationary it seems to pretty much clear after about 2000 but still a even slight wobble up higher. On the road, under load it is not noticeable. What are you thinking?

Timing is steady using a simple old fashioned timing light on No.1.

Also confirmed ballast resistor is OK.

ECU seems to test OK, BUT I only have 10.8v on feed wires.Earths all OK. Must be losing voltage in the wiring? 5.2Volts at the coil. Ran a temporary feed direct from battery. 6volts at the coil. Made no difference.

Found a small fuel drip from centre carb RH primary booster. New float needle O ring and re-adjusted float level. Thought this would be the solution but no. Idle vacuum 16 in park, 13 in drive. Sorry to sound stupid but do you mean clean the idle bleeds with a wire or literally put wires in to...

Fortunately I have cousins in Ca and Or so get parts sent to them. I'm there July.

Thanks for suggestions. Not worked on car today but will respond when I have.