i told you about the stalling problems : well i checked several things and discovered after that ride that the battery was almost dead. I discovered the alternator gives max 12.3 V (i can't say accuratly because i forgot to check the alternator running with the wires unconnected) . I think a good operating alternetor should give 14 V . Should that low voltage on the alternator involve a bad battery loading that means a consumtion of current and so after the 60 miles or so i travelled , my battery was almost dead?
I am sure the battery is OK because i could recharge it without problem and it is 7 month old.
Another explanation for the stalling may come from the fuel line, that are very close to the headers. what may be possible is : as the engine compartment gets hooter, after 50-60 miles the fuel line were hot as well, involving gas to evaporate in the line itself, causing bubbles of fuel, and when it comes to the carb (a 4160 1850 600 cfm) and you step onthe gas asking for power and rpm, then it stalls because of these bubbles.
So i think it is not a bad idee to move the fuel line else where at a cooler place.
I think my problems come from both fuel and alternator, but i wish you tell me if you think the same or you think about something else or simply what i think is impossible ..
Camaro 1968, propane 327ci, Big Brake, Hotchkis, T56