Hi,
I have a RoW spec 70T, so originally with carbs and no fuel return circuit that ends in the engine bay. My car is now a hot rod (RoW 79SC based 3.2SS heavily tuned motor running 46mm PMO's). There is clearly some rust in the petrol tank as I had an issue recently and ended up needing to get my carbs cleaned (despite 3 inline fuel filters). I have other issues too. It takes a long time to start (lack of fuel). Also, if I brake heavily, the car sometimes stalls. I suspect that my 48 year old fuel pump is not up to the job. I'm thinking of making a number of changes and would like some advice.....

1) My local Porsche specialist recommend getting the tank plastic lined to stop rust in the fuel system. Has anyone done this? It makes sense to me, but I'd like to hear if its been successful.
2) I'm thinking of fitting a fuel return system, as per the MFI engines and terminating at the PMO fuel pressure guage (70T fuel return system terminates at the fuel pump by the tank). I think this will keep the fuel cooler, which is supposedly better, and also mean that there is less chance of a stalling issue under braking. I will replace the current fuel line as a matter of course to ensure there are no rust/contamination issues with the current lines. Any thoughts on this?
3) I will also use a higher pressure fuel pump as the pressure can be regulated by the PMO pressure guage and install a MFI style filter in the engine bay. Any recommendations what to use. Standard Porsche 79 SC pump or something different?

Many thanks