Header vs. stock manifold & dual out w/ Y-pipe

[michael_cini]

What other mods to the engine are you planning? If you are keeping with a fairly stock engine (basically, leaving the intake log intake, or with a 2v adaptor), I think 2" will be great for single out headers. If you were going Aussie, or Offy, I said 2.25" exhaust for a single system.

Another thing that changes exhaust sound: Cam. I upgraded my cam, and the sound of the exhaust became louder and throatier.

Slade

i am planning on adding a 2 barrel carb, hogging it out and doing a bit of milling on a later head, but nothing too extreme.

michael

 

[CZLN6]

Howdy back Mike and All:

Either will be a nice upgrade over a stock system. All things being equal, I'd probably go with the 2.25" system, which will have an advantage at higher rpms, and room for future upgrades. I also subscribe to Panic reference to Vizard's observations, about no such thing as good back- pressure. A good volume and steady velocity exit of spent gases is the best for performance and efficiency.

Your choice.

Adios, David

 

[michael_cini]

Howdy back Mike and All:

Either will be a nice upgrade over a stock system. All things being equal, I'd probably go with the 2.25" system, which will have an advantage at higher rpms, and room for future upgrades. I also subscribe to Panic reference to Vizard's observations, about no such thing as good back- pressure. A good volume and steady velocity exit of spent gases is the best for performance and efficiency.

Your choice.

Adios, David

thank you for your help David and everyone else too!

best,

michael