Help no spark 96 S10 Blazer

[timmystoys79]

I need some help and have got it here at this site on my wifes Grand Prix GTP. Anyway it is a 1996 S10 blazer 4x4 v6. It was in a wreck I bought it, it still ran but had a slight miss, then I took it to a frame shop to straighten the drivers front frame horn. All was still good. Then I picked up from there to start working on the front clip but now it will not run at all, no spark!!! It has approx 55psi of fuel pressure while cranking and does not drop when sitting. I hooked up a spark tester to a wire and had no spark so I un-plugged the coil and came straight off of the coil, still nothing. The shop claims that they drove it out of the shop and parked it?????? I checked for any wires that they might have pinched but could not see anything, also checked for blown fuse all ok??? Anyone have any ideas where to start. By the way the car ran good untill wrecked then it sat for approx 1yr in a storage lot untill I bought it, like I said it ran but had a miss that I figured was just a bad wire or plug, no nothing, PLEASE HELP. Thanks Timmy