o.k. guys... Got one for ya.. My 88 4x with a 85 360 & all 85 wiring has a carb prob.. or maybe a timing issue.. It is popping back when you romp on it.. itles good & starts easy..just pops when you romp on it or put it in a strain.. Got a new set of plugs to put in tomorrow. gonna start there.. put a new vacuum advance on the distributer.The cap & roter is all good shape. what ya think?