Hi guys, im back again with another question........ I have been searching and searching for a set of good flowing heads and I ran across a guy who told me that 5A heads will outflow the 3A heads that I currently have. Luckily I still have my 5A heads from my 307, but is what this guy saying true? If they do flow better and I will pickup atleast a little gain from them, then I will bolt them on for the time being while I continue looking for a set of better heads. What should I expect from them compared to my current 3A heads?
Thanks!!
