mr p-body the dist that is in it now is a dead stock small block. i was told to try to establish base timing 1st with the stock one then,i can figure out what my mp dist wants as far as curve goes.the other dist that i have is a mopar performance dist.it is set up if its 20 base* total is 35* but i think the total is coming in to quick so it wont idle that well once i put it in gear.if it idles at 1300 rpm i put it in gear it drops down below 1000 and wants to die out some if i dont touch throttle.i set the timing with a dial back light(sears dial back),could be the problem,it reads 30*base,and does not kick back when it starts so i borrowed a non dial back to check against mine. i think its reading wrong on my msd6al and the dial back but need to verify that. thanks mike