Carb. popping

blmopar1 said
The accelorator pump is spraying ok.The carb is a 700 dbl pump which is from an older 340 race motor with larger than stock jets (70 jets-stock 67 jets).It also has the stock points dist.I set the timing by disconnecting the vac advance and set it at TDC (acording to the book).Is this the wrong way to set it.If I check the dwell it is at 21 when it should be at 30.Thanks

Crank the motor up and do what redhot said. You've got to have initial timing. You if don't have any means of seeing the 33 degrees at 3000 RPM on the balancer then just make sure you have 16 degrees (give or take) while the motor is idling with the advance unhooked and plugged off. This should get you running much better.