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Discussion Starter #1
Just fired up my ride after a few months of detailing engine bay and doing some other upgrades. Fired that bad boy up this last Saturday and it started right up. It sounds awesome... "open headers". I'll have to upload a video and link.

Car was an original Cali. C code (2 barrel carb, smog pump etc.). I removed all the smog equipment (and yes, I kept all original parts in tact) and upgraded manifold and carb to 4 barrel from a 66 fastback donor (original 66 fastback manifold and 4100 autolite carb - all rebuilt). I also added tri-y headers and Pertronix Ignitor. Almost forgot, I just purchased a 3rd member with locker and 3.55 gears which I plan to install in the next few days.

My question is this; I purchased two flowmaster 40 series mufflers and wanted to know what size pipe I should have shop install (2", 2.25", 2.5")?

I keep hearing more air the better but at same time I want to make sure I get well balanced results and pick what is best for a future daily driver.

Thank you all for your help with this and the other threads I’ve posted.
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