Trick flow is a lot of head for a 318, there gonna want to work (make peak hp) in the 6500-7500+ rpm range with a decent cam in a 318.
trick flows are for around 500-600 hp builds maybe as low as high 400 hp, edelbrock are for 400-500 hp, you probably should go speedmaster or edelbrock's if looking for a 350-425 hp 318, 5500-6500 peak hp rpm.
Anything done to the short block? like zero decked at least.
