72 360 first start question

"Priorly you set the slit at 15BTDC and lined up the magnet with the tooth. Was it still in that setting when you swapped carbs? If not then I would set it back to that & holler what happens. If yes then we might put a light on it now & see if we can get a reading (a dialback would be handy here). What is the lowest RPM you can get it to idle at now?"

ok so just to be clear: when you say the slit, you mean the timing mark on the dampener right? and when you say BTDC you mean "before TDC" right? If so my factory mark didn't line up with TDC on my engine. so I made a new mark that is at TDC on the #1 cylinder and that is what i have been using as my timing mark. Also my timing cover only gives me 5 degrees before and after marks so in order for me to move it back 15 degress, i maeusred that distance on the timing cover and multiplied it by three and marked it on the cover then spun the crank counter clockwise until my new dampner timing mark lined up at my new cover 15deg. mark. I then pulled the dist. and reset the oil gear pointing back at #1 and reinstalled the dist. rotor now pointing at #1 I ran it with the new carb at both this setting and back at TDC. It seems to run better at TDC but will run at the 15 BTDC setting but roughly. I don't have a tach hooked up so I can't tell you actual rpm's but I'm guessing I'm in the 2000-2200 range. I put a timing light on it and I'm at 25-35 degrees advanced when it's running best. It's revved quite a bit above a normal idle and sounds good at that rpm, but when i lower the throttle or retard timing it dies.