Engine tuning - where to begin . . .
Good afternoon all,
This is probably a fairly basic topic, but thought it would be worth asking.
I have a 68 convertible with a 350 engine. I purchased this car about a year ago and had it shipped cross country - yes, i bought it sight unseen . . . . lesson learned.
I recently flushed the coolant, changed the oil, installed new plugs, new wires, air filter, PCV valve and a new Edelbrock Perfomer 1406 carb. The engine runs - starts up easy, but idles rough. I have no other information about the engine - cam type, cylinder bore, compression, etc.
So, given that information (or lack of), I am trying to figure out what adjustments I should make and, maybe more importantly, what order I should make the adjustments in:
1.) Initial Timing - assuming this comes first. Not knowing much about the engine, where is a safe spot to set it.
2.) Advanced/Total Timing - Assuming the vacuum advance is working properly, what range should this fall in at 3,500 RPM if my initial timing is set ?
3.) Air/Fuel mixture screw adjustment - assuming this comes after timing is set. I've read about using RPM's to adjust these.
4.) Idle adjustment - Assuming this comes last. What is a normal range for idle RPM's to be at?
Thanks in advance for any input.