Questions about Nesher

Hello,
I’ve some questions about the “detail” of the Nesher delivered by IAI adn used during the 73’s war:

– Engine:
According to “MIRAGE III IIIR/RD ET 5F DANS L’ARMEE DE L’AIR” by Bernard CHENEL, Eric MOREAU & Michel LIEBERT in 2008, the original Mirage-5J built by DASSAULT were fitted with ATAR-9C4 engine (which differ from the ATAR-9C7 used by French Mirage-IIIE by their starter device and lack of automatic extra speed system), but when DASSAULT deliver them to French AdA as Mirage 5F, they have been retrofitted with ATAR-9C7 to better maintenance comunality with other french Mirage IIIE).

On the other hand Swiss AF seems to have fitted its Mirage IIIS with the ATAR-9C3 and according to (http://www.amicaleaviation4.ch/html/1_4ea60.html), they have suffer lack of thrust at high speed/high mach that has never been completely fixed.

So which kind of ATAR-9C has been fitted in the firts batch of Nesherused in 73’s war? and could we assume they suffer the same lack of thrust Swiss AF experienced ?

– Empty weight:
The Mirage 5J/5F is said to be 390Kg lighter than the Mirage IIIE (mainly due to SNA simplification and electronic devices removal, when Mirage IIIE’s weight being 7,050 kg, Mirage 5F is 6,660 kg), do we have any evidence that IAI kept the Equipement list initally planned for Mirage 5J ? or does Nesher have additional devices increasing their zero-fuel weight ?

– Internal fuel:
Mirage 5J/5F have an additional fuel tank just behind the pilot (where werelocated most of the SNA in Mirage IIIE), this tank is supposed contain 465 liters of fuel.
Somme Mirage IIIE (no idea which SN) have fuels tanks in the leading edges (125 liters each), is there any information about these tanks in Mirage 5J or F ?
In other words, what is the internal fuel capacity of a Mirage 5J/5F ?
(for reference, the internal fuel capacity of a Mirage IIIE with leading edge tank, a “chassis canon” installed (so no front tank) and without SEPR rocket (so with rear tank) is 2,915 liter.)