That's what she said! haha anyway, you need to retard your timing a little, and you need to do it right. I put off buying a timing gun hoping that I could find a cheap used one, but when you see how many degrees the timing actually moves with just a small movement of the distributor, you'll be very glad that you bought a timing light and very upset with yourself for putting it off. With a gun you can adjust the base timing (with the vaccuum advance hose disconnected AND plugged) as well as make sure that the centrifugal advance is working. I believe all of your advance should be in before 3,000 RPM for a stock motor. You need to have your timing and ignition in good shape before you can really tune the carburetor. And mark the correct TDC on your balancer. I had someone bump the motor over while I plugged the #1 spark plug hole with my finger. When it gets to TDC it'll blow your finger out. From there I put a screwdriver in the spark plug hole to feel for the top of the piston, then turn the motor over slowly by hand until the piston is all the way at the top, when the screwdriver stops moving. So to summarize, buy a timing gun, mark the correct TDC, buy a timing gun, and then let us know what happens.