My RS Turbo S1 has been laying in storage for the last 15 years, finally getting around to getting her out again but I've hit a problem.

I've replaced the fuel pump as the last one was stuck.. but now I've put 20litres of fuel into the tank and with the pipe to the pump off I'm still getting no fuel out.

Have s1 got a swirl pit or something on outlet that could be blocked?