George,
I guess I'll add my 2-cents worth.
I have a 292 with a Wolverine 270 dual-duration cam, water heated 3x2 offy intake with Holley/Webers, Stovebolt headers, 3:55 10 bolt, 30" tall radial whitewalls and a Z-28 T-5. I just got back from the Indy GoodGuys Nats and I got 20.5 MPG @ 60-65 MPH. My Tach was reading approx 1950rpms @ freeway speeds. Having a 20 gallon fuel tank gives me a good range. If I venture to 70 MPH, the mileage drops to about 17 MPG. Car show cruising it gets about 14 MPG. Over a year ago, I installed a Vintage Air system and found that it has a negligible effect on the mileage and performance. It's sure nice in the hot & humid summer days!
Oh ya, I have chambered pipes as my mufflers. Zero restrictions when cruising, great tone but don't follow me on the freeway if your trying to listen to your radio!
RapRap
1940 ChoppedChevyCoupe
Last edited by chopped 40; 06/19/09 10:12 AM.
