Naaahhh, it wouldn't make you a poser. Putting the bumper on would kinda, but you'd still be in the safe zone.. as long as you don't put on all the badges and stuff. I don't see a GT with a Cobra hood as a poser, but I kinda do see a GT with Cobra hood, front and rear bumpers, badges, etc as poser IMO.
But as I have said many times, it all comes down to what you like. DO WHAT YOU WANT to your car.
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351W-powered 1979 Ford Mustang notchback
Stock 5.8L under 4" cowl, C4 w/ shift kit
Holley 750 cfm, Edelbrock Performer RPM intake
1 5/8" MAC shorty headers, Al driveshaft
2.5" Off road H-pipe, 2-chamber Flowmasters
Front: 225/60/15, Rear: 255/60/15 Eagle GT II
Weld wheels (15x6;15x8), 8.8" Rear w/ 3.55s
14 x 4” K&N air filter (getting the Xtreme setup someday)
"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