To inject, or not to inject.. that is the question...

These cars came with highway gears.....unless you were "lucky" enough to have an original 4bbl car, you got 2.80 gears with all 2bbl 289's. Just a swap into the 3.25-3.55 range would make a world of difference. I currently have the 3.40 gears in mine, but will probably move up to the 3.80 range as I prefer a rather spirited driving experience. If accelleration isn't a major concern to you, then keep the 2.80's and spend your money elsewhere.

You are still slow to provide us with all the details, I'm thinking like Hearne.....you have too big a carb matched with stock gears and an auto trans.......sound right? A mostly stock 289 probably only needs a 450-500 cfm carb to be honest....they fall flat above 4000 rpm. Like he said, a 650 double pumper would be way too much on a stocker. Now with heads, cam......

66fastback said:

"We had the pump and fuel lines routed well away from the exhaust systems, and the pumps mounted below the bottom of the tank level. We tried a number of different pump manufacturers and eventually just pulled the stock tanks and had fittings brazed into the tops to mount the in-tank pumps. Problem solved in both cases.

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Weird, what pumps did you try? I'm not in texas, but I've never experienced a problem. Have checked the pump and yes it got a little warm, but not very hot at all.

LOTS of OEM vehicles using inline pumps with no problems at all.

With a 255lph pump, it moves the fuel through the system so quickly, it shouldn't have a chance to get hot at all. At 255Lph, that's over a gallon a minute... I don't see how the pump could heat a gallon of fuel to the point of vaporization in under a minute.

I don't remember the exact pumps we tried. I know we both had Holley pumps and enjoyed driving the cars for several months......then the weather got hot. By mid-summer both cars were having problems. I think we also tried an Accel pump, and one other.....not sure which brand now. We switched to the in-tank pumps and have had years of service without another problem.

I have a buddy who does efi conversions on Jeeps, and he never had a problem like this and all he uses are the in-line pumps. Maybe it has something to do with the air flow under the vehicle. I'm not saying that you WILL have problems with the in-line pumps, I'm just relating personal experience.

Well I wouldn't bother, but not really for any reasons that are relevant to anybody other than myself I grew up in Silicon Valley, I just got burned out by electronics. I got into these cars specifically BECAUSE they didn't have all that stuff on em. In fact, when the warrantee is up on my Harley, I will be taking its EFI off and putting a carby on. But that extends to pretty much all parts of my life...I do my schoolwork on a typewriter, I don't have an Ipod or a cell phone, etc.

I don't necessarily mind EFI, however I just don't like the look of the 5.0 manifolds on classics TBO. Just looks out of place. I do however like those kits that use a throttle body in replacement of the carb.

Or something like this would look sweet too.
Katicore Motorsport - Ford 302/351 Cleveland Manifold