HELP...Will not idle in gear

Thanks, ballast resistor, ICM box new and rebuilt distributor put in already. Lots of spark but timing still advanced 15 degrees and will not idle once warmed up. I'll get the distributor off and adjust the bottom plate to give me more room to retard to close to 0. Then find the mixture screws for the idle and clean and adjust... I'll report back this weekend once this is done... thanks guys... Derrick.