Rev,
Not 100% sure what my redline is, but I'm pretty sure it's around 6000 rpm.
I shift at 5400 rpm.
My first guess as to why the fan hit the shroud was b/c the motor mounts were worn. But after checking them out, it doesn't seem that they are. I will check them more thoroughly before I really get down on it. It may be that the shroud was just coming down b/c I heard it kinda hitting the fan before I went out that night, but it was so slight that you could barely here it. I dunno, gonna hafta check it out.
Thankfully, it didn't slice any of my lines. I checked for a solid 10 minutes to make sure there was no damage. I found the path of the blade when it flew off: it flew to the left (driver side) and cleanly shaved off the lip of my windshield washer fluid cap. Also took off every lick of dirt on a place on the underside of my hood.
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'79 Mustang Coup
4" Cowl
Weld wheels (15x6;15x8)
Stock 5.8L
C4 w/ shift kit
1.5" MAC full length headers
Holley 750 CFM
Edelbrock intake
2.5" Off road H-pipe, 2-chamber Flowmasters
8.8" Rear end w/ 3.55 gears (Now that's more like it!!)
Front: 225/60/15 Rear: 255/60/15 Eagle GT II
14 x 4” K&N air filter (getting the Xtreme setup soon)
"Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body