1990 cadillac brougham 5.7 wont start
 

Ok guys, ive replaced fuel pump, ignition module, coil pack, distribuer cap and roder, thermostat, values and vac*** hoses and my baby still wont crank!! I have a pretty handy mechanic and he believes it could be the time chain thrown off!! Im gettin fire from the cap and its definitely pushing gas thru but still no luck!! Any suggestions????