Originally Posted By moparborn
Hit the road Saturday, ran good,had to tweek it a little,still will need adjustments.
Start up still gives me a little attitude ,have to open throttle a little ,starts up rich,prime set at 50,will keep dropping it.
Put about 2 pounds of boost to it,pulled good ( a little smile),then ? ,it started popping and running rough ,i am thinking bad things,get back to the garage,checked it over,relief, two plug wires came loose and melted on the headers,will not let that happen again.
Now to find out why the afr goes to 19-23 when letting off the thottle(not under boost),seems a little too lean for comfort.


It should go lean when engine braking above about 1200 or so rpm. The injectors turn off.


-78 Utiline (5.7 Hemi)