460 with 80's era cpu (new), stock coil (old), 80's era distributor, no points. All electrical connections and ballast resistor are new.
Now my problem. When I start the boat it runs perfect for about 30 mins then develops a miss and eventualy will die. If it dies I have to wait a while to restart however, if I back off to an Idle, I can keep going back to shore. At this point the Idle most of the time is irregular. If I start the boat, after an hour cool down, I have about twenty mins before the same problem returns.
I know I have plenty of fuel pressure and kinda suspect the coil is going bad when it heats up...... Any Ideas?? dc