I agree , Chev intake , the carbs are missing a lot of parts , the list # are on the back behind the airhorn on the front & back carbs ., in front on the middle carb
They are vacuum operated carbs so there should be vacuum pots on the right side of the carbs , { left in your pix ] to pull the...
MY bet is timing is retarded too much , should be 16-18* at idle rising to 36*
Next the electric fan is probably block more air than it is moving , Factory used a clutch fan , it tightened up at low RPM to move air but released with RPM & temp to allow full air flow at highway speeds , if the...
Overall the factory system is very reliable , carry an extra ballast resistor of course & use a good quality 4 pin ECU , parts are readily available unlike aftermarket systems
Ok I was wrong , not made in China but still not made with decent quality or materials
Most I have seen , heads & intakes etc have bad core shift . 1 customer bought a carb where the fuel bowl wall was not cast so the counterweight for the air door was sitting in fuel , it had a quality...