dies at idle

ok set the timing at 35* total timing, runs much better. adjusted carb and even put 1/2 inch spacer between carb and manifold. car idles better lasting for about 35 sec before dieing. friend feels its the bad gas calif. has. he mentioned summer blend gas would be alittle better well try soon. we spoke with eddie rep and he states he has heard about this before, his suggestion spacer. wondering if anybody else in cali is experiencing this? thanks again for all the help i need it. b