Thank you so much Eric!
Do you have any experience on swapping stock cast manifolds for headers on a stock engine?
Does it worth any torque?
I have a cast intake and cast manifold,I'm not sure if i should change the intake or buy a headers to have few more power.
Sorry I did not get back with you. I once had a 600 edelbrock and did not like the performance of it so I went with my 600 holley and have never looked back and the fuel mileage is really the same for the most part and I get almost 19 mpg highway. The holley is easy to tune and out of the box should be very close to what your stock 350 would want and need. I vote holley but its your choice to make. I had two other engines that had the same carb both stock small blocks one ford and one chevy and they ran fine out of box with good fuel mileage and no hassles. Edelbrock are good and easy to tune but holley will always give better performance over edelbrock as that has been my experience.