exhaust questions

[Shawn's 78]

Bob,
Are you running Headers or stock manifolds? I've been debating whether to run Delta 40's or 50's on my 78. I want enough rumble for people to notice, but not too much to make driving annoying. It's tough to tell on Flowmasters website; they (40's & 50's) sound the same.
Thanks
Shawn

 

[Bob Chadwick]

Shawn,

Just the stock ram horns. The HP is low enough on the car that I wasn't worried about the breathing. I was looking for the sound.

The 40's are supposed to be louder than the 50's and I think the Delta's are either quieter or have reduced resonance, I can't recall which.

Once I get the HP up a bit, I'll look into some full length ceramic headers. I understand that the full length allows for better low end torque. Probably do this about the time I change my intake manifold to the Edelbrock Performer.

Bob