Hesitation

[4thgen57]

272, auto. 2 bbl, Has had a hesitation from stop lights as long as I have drove it. Have installed bigger jets and it helped. Plugs look great. Dont see a reason to go bigger. Seems to be worse cold obviously, I just cant do a good hole shot!!!(  Installed a pertronix and that didnt help. just looking for any other ideas.
Carb is a 500 cfm holley. If I drive 2 footed and work the go peddle I can work through it and it drives great.
Thanks
4thgen57

[lowrider]

You didnt mention it but have you checked the accellerator pump in the carb to see if you get a good stream?  Next I would check base timing (I set mine 10* BTDC) and make sure it advances.

[Hoosier Hurricane]

Do you still have the heat riser valve in the exhaust system, and does it work properly.  Heat to the base of the carb is needed in the midwest weather.  John.

[4thgen57]

Accellerator pump is good. no heat riser. Even on 95 degree days in the summmer it hesitates. Will check timing as soon as I have a chance.
Thanks