My car, has a lot of trouble between 500-1300 RPM. It feels as if its stumbling or missing. It has a rebuilt carb, new plugs, wires... i need some advise on how to tune the carb if it is the problem.... maybe timing needs adjusted??

 

ALWAYS have the ignition up to snuff before you start messing with the carb. Try 6 degrees base timing (assuming plugs/wires/cap/rotor/coil/etc. are all in good shape). See how it runs then.

What air cleaner are you running? If open element, that's a common problem with that setup. The snorkel air cleaners have the thermovac system to keep the inlet air at a consistent temperature, and this little stumble is common it it isn't there or isn't working right.

After that, you're looking at adjustments. Let us know if it still needs help.

 

i do have open element air cleaner, however i just put hedders on and they didnt come with the thermovac hookup, i will try adjusting timing, see if that helps, thanks

 

so open elements are a no-no with carbs?

 

I'm running an open element and haven't had a problem with stumbling.