gas problems

[75clipper]

I have a 1975 class C with a Dodge 440 with around 70K Miles....
looses power at 65 mph and if Iam not quick on the throttle it will act like it wants stall.

or it will be running fine at 50-55 mph for an hour or so and then I will loose power .
any help would be greatly appreciated.

jc fomr ceres

[Richard Peterson]

Sure sounds like a fuel pump problem.  You might replace the fuel pump just because, it isn't very expensive.  If you ever experience starvation or vapor lock problems in the future, you should consider an electric pump mounted at the tank.  This solved my problems which were similar to yours.

[Rastaman]

you might want to check your fuel filters also...might need to be changed
rastaman

[JerryT]

I would also check for fuel flow and vapor lock, if not that, I had a 72 chrysler with the 440 that had a coil going out, weak spark at high speed and it cut out when it got hot, ran goofy, was hard to pin point, being half broke. Good luck and let us know what you find out.
Jerry T

[75clipper]

I have change all 3 filters, and now I going to check the coil, now that sound right to me, I change fuel lines and clean this and that, so now I'll check the coil, someone said something about that too. I have a new fuel pump and one from the tank I change this weekend, thanks all for the help

jc from ceres, ca

I would also check for fuel flow and vapor lock, if not that, I had a 72 chrysler with the 440 that had a coil going out, weak spark at high speed and it cut out when it got hot, ran goofy, was hard to pin point, being half broke. Good luck and let us know what you find out.
Jerry T

[75clipper]

I change my coil, oil and filters, now it cruise over 65 again, cause I could not get over 60, then it would act up like trying to quit but now so far I can go cruise 65 or 60.

jc from ceres, ca

I know this might not be much help, but $2500 even if you did have to swap the carb sounds EXTREMELY high.  Have you tried a second opinion/different mechanic?