340 no can start

can I take it out then drop it in again 180?

Yes, with the slot in the distributor you can get right on or 180° off...

You need to verify that you set #1 to fire on the compression stroke, not the exhaust stroke.... :BangHead:

It's common on mopar v-8's to drop the distributor in 180° off if you aren't paying attention... Just pull it out, rotate the rotor 180° and drop it back in...