So this is happening on this FINE Saturday afternoon...

[John Kirby]

Upgrading to 3/8” will gain you absolutely nothing with the 5/16” supply on the tank.

But it will allow you to change the pickup to 3/8" later and gain the benefit. The cost difference between 5/16" and 3/8" during fuel line replacement is almost zero.

 

[detmatt]

But it will allow you to change the pickup to 3/8" later and gain the benefit. The cost difference between 5/16" and 3/8" during fuel line replacement is almost zero.

I don’t see this ever being a street/strip car so maybe explain to me the benefit of upgrading to a 3/8” fuel line on this car.

 

[John Kirby]

If you don't want to then don't. It's no skin off my ***.

 

[68NewportDDD]

Agreed...not going to boost it any more...just a Sunday cruiser. So would it make a difference in terms of fuel line size?

 

[detmatt]

Agreed...not going to boost it any more...just a Sunday cruiser. So would it make a difference in terms of fuel line size?

Not even a little.

 

[68NewportDDD]

GUESS WHAT! The tank (and sending unit and new rubber lines) are all IN! I think it is running even better than it was before, AND the fuel gauge WORKS!. Now I need to get tit out and stress test her to see if we are still having the same problem of cutting out after running flawlessly for about an hour (~30 miles or so in stop & go traffic). Will keep the thread posted.

Next steps: New fuel filter (not going ANYWHERE without replacing that first), new plugs (I have NGK's to install), and an oil change.

Thanks again for all of the input.