What would you do to your 131 to make it go faster , wether  on a budget  or  loads of wonga  

 there some very expericoence tuners on here from our own TOAD to  PLOPES in south africa and loads in between , but your thread link up to high light your path ..
  Ive always gone cheap and secondhand , a lancia breaker with a fully gas flowed head and hi lift cam s (base curcle machined  ) and the only new thing new was the aliqity downdraft mainfold and k/ns , twin 40 idfs webber
 carbs  second but they where newer than the 124 bc carbs , (no model numbers on) 
  got to about 125 bhp at the wheels with a stupied rolling road tune who left the choke fuel enricher cable to tight so it was on all the time so i could have had a bit more  

  it was a super fast car plenty of low down torque and whould spin freely up to 7250 revs .
 only a couple of timmw i remmber a mate at work at 5am  kawiski 750 took him off the lights then he wizz past me and silvia 1.8 turbo just playing with him he couldnt get away and i was 3 ft of his bumper for ages then let him go all in my youth 20 od years ago ..