Carburetor settings?

[Nessumsar]

I need desperately to tune my engine. Idle speed stutters, and runs way too fat at WOT. Now, I don't have an O2 sensor; so I understand that I will only be able to get close to an optimal tune, but I need some of your guys/gals experienced input.



My engine is in my sig., and would like your input on how to set me carb so that my car will run well. Right now I have a stock 4150 750cfm Holley carb, and my timing is 18*int. and 36*total at 3000rpm. While sitting at a stop, you can smell fuel, and if you sit at a light long enough, it can burn your eyes (my fiancee hates this!). And at WOT my friends can't stand to be behind me. And when I punch it, from a roll or stop, it sputters and then goes.

So, what peices do you recommend I put in my carb. Right now I've only thought about jet sizes; a size down on primary (77?) and two on secondaries(78?)?