did you do the work o a shop?it is vey posible the timing belt is not set ight o thee is a wie not hooked up,or somthing like that.if it an before the heads came off then there is NO reason it should not run after.

87 dodge power ram 50,35" tires,5 1/2" total lift,4.6 gears,lockers front and rear,Rancho RS5000's,custom front bumper,custom rock sliders,cct extended diff breathers,75 amp alt(40 amp stock),thorely header,K&N,wheeled hard...