sounds like the right line of action, once you get that fuel pressure set right, see if your car will idle at lower RPMs, and check your timing, that can cause this as well.... once you have got both set right and it still wont idle right, then i'd say check the float level in the carb before you go out and have yours rebuilt, replaced... having a carb rebuilt will cost you probably $150 as a new carb will cost you somewhere between $350 and $900 depending on what you get.... i wouldn't suggest something in the $900 range though, thats a little too high bred for you, and you'd just run into problems tuning it and such