This is older, but might be of interest.

https://www.fordification.com/forum/viewtopic.php?f=3&t=46539

#SickofRustyHeaders

Has anyone bought the LMC Dual Exhaust Exhaust lately?

Actually Mandel Bent? Fit OK? Arrived undamaged? If you got turbo mufflers what were they?

What Brent and kidd said.

I absolutely would not use the same lifters.

Private video

AGREE

More specifically based on these numbers installed as ground IVC is 61.5.

You should go look at some of brents cam videos start with the one about common mistakes in picking cams.

I think the group is going to need a definition of "well built" and "close to 10:1" to go further.

I had a car (not an FE) act like that and it was the advance weights sticking.

/in that particular case when it was idling high i could bump the clutch and it would idle down.

^  This place is amazing.

OK, switched to a Dual Sync Distributor which requires HEI style Wires.

Got MSD 31323

Which list this as an application:

Make:
FORD
Model:
F-250
Submodel:
CUSTOM
Beginning Year:
1975
Ending Year:
1975
Engine Type:
V8
Liter:
5.9
CID:
360
Engine Family:
FORD BIG BLOCK FE V8 GAS
Engine Size:
5.9L/360
Engine VIN Code:
Y

And the following wire numbers lengths:

1 Cylinder 24”
2 Cylinder 23”
3 Cylinder 37”
4 Cylinder 31”
5 Cylinder 25”
6 Cylinder 37”
7 Cylinder 28”
8 Cylinder 34”

I followed this and they fit poorly, in retrospect this doesn't look right? Shouldn't  1/5 be short 2/6 longer, 3/7 longer still and 4/8 longest.

Alternately does anyone know of a good fitting set or the lengths of the factory wires?