Improve gas mileage on a 427 so ?

[patrickt]

Originally Posted by olddog

Throttle response would better with Vacuum Advance. However the old vacuum advance physically has to move and vacuum has to drop with a fair amount of area to bleed off, so it cannot drop down to the mechanical advance only point, as quickly as needed like EFI can do. If you are driving along in a higher gear and stomp it, the engine will typically get about two pings in. In the lower gears, you would blow the tires off the wheels.

The rubber on my tires are as old and hard as a fifty year old pencil eraser -- they are way overdue for a change. In lower gears, they break loose with about 30% throttle.

[Gaz64]

Originally Posted by patrickt

The rubber on my tires are as old and hard as a fifty year old pencil eraser -- they are way overdue for a change. In lower gears, they break loose with about 30% throttle.

Geez Pat, you need some more grip.

You have a form of traction control, limiting throttle opening.

[patrickt]

Originally Posted by Gaz64

Geez Pat, you need some more grip.

You have a form of traction control, limiting throttle opening.

No question about it. New shoes are on the to-do list for this season. I said that last season though, but somehow never got around to it.

[xb-60]

Originally Posted by patrickt

The rubber on my tires are as old and hard as a fifty year old pencil eraser -- they are way overdue for a change. In lower gears, they break loose with about 30% throttle.

I thought you were a lawyer, not an accountant....?

So, back to post #12, at 30% throttle you should be getting good fuel consumption then?

[patrickt]

Originally Posted by xb-60

I thought you were a lawyer, not an accountant....?

Just goes to show that I don't have a lick of cents.... <pun>