Headers on Ramcharger

I am considering installing headers on my stock 318, 2bbl 87 Ramcharger. I already have 2.25 duals on it, but otherwise stock. My goal would be for improved milage. Do you think the gains (if any) are worth the trouble of installing them? I can get a new set from Advance auto for 120.00 shipped
Thanks!

Find a deal on a used eddy performer and 600 edelbrock. That will wake it up.... Then install the headers and you will notice a difference. Been there, done that..

JW