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Originally Posted by blue68f100
You have to be adding a lot of Lead Subsitute additive to prevent from damaging the valve guides. Unless your running Aviation fuel your low on octane.
When I got this from my dad in 2000, I was forced to re-jet the carb to keep it from pinging. It's been in the family since 1970. Remember in 1968, we had leaded fuel where the low grade fuel was 98 octane, premium 102-103.
I replaced the original heads on mine to the Edlebrock 428 Al heads, So I could burn this Unleaded fuel. Along with roller rockers, cam, intake and carb, Ignition system, just to name a few items.
Mine has the C6 transmission which I have rebuilt and installed a shift kit in it. Even with the C6 I can lite the tires up in all gears.....
I have done all of my own work. The only work that I have paid for was machine work on the block and crank. I even did my own balance work on the rods. The only thing I have not gone through yet is the Ford 9" rear end. I have a spare 3rd member which I'm going to set up with a locker.
Mine only average 8-9 mpg,  If I keep my foot out of it. Which is very hard to do. Which only gives me ~140 miles per tank. The reason I added a rear 26gal aux tank. |
That's awesome! You sound a lot like my crazy old father. We run 108 leaded with a mix of 94 Shell pump. It seems to do okay. He'll pump higher grade gas in it when we can find it for sale, the 108 was crazy $, even back in the day. We're planning to do the same sort of setup as your FE, with the roller rockers and the same heads, plus it'll fix the seats so you can run reg. pump gas, which will be nice. The last thing we did was put an 850 Holley on, it's milled and has the 4 corner idle, etc, it's a nice carb, big spray!
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You shouldn't have to do much with your 9inch, they are pretty much bullet proof. Old crazy likes to power shift and dump the clutch on occasion; of course the drag pack has better axels, 31 spline I think. They sure don't make 'em how they use to ehh? It's a fun car to drive but can be a handful if you're not careful. We have a spare pumpkin for the rear-end that's got 2.75's in it I believe, it'll be nice to be in fourth from 35 MPH and then hammer it and watch the speed keep going and going... Hard to beat cubic inches, at least, that's what the old man says.
M.