Having trouble "dialing it in" HELP!

[nejeff]

Hi,

I'm a novice at these things but I pride myself at figuring these things out. Can't do it this time. Here's the story:

Put 307 in my 72 and did the following:

Changed plugs .035, New wires + cap, condenser, rotor + points new, rebuilt 2-barrel out of the box.

I set the dwell at 30 and the timing at 8 btdc but it is still acting like it's getting too much gas and feels like it's just a screw turn or something away from running good. It feels like it's being held back some. Some hesitation and a little backfiring.

I have adjusted only the idle screw on carb.


What's the proper way to get this baby tuned? What am I missing here?

Thanks guys