the gt500 was rated around 350hp by ford, but was under rated. It had a 428 big block engine. the 68 GT500KR (King of the Road) was the best mustang of all time to me (Other than my car), it had a beefier engine (360 hp) than the gt500. My Dads old high school buddy had a GT500KR & it was my dads fav mustang also.
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1988 Mustang GT, T-5
No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe (Sounds Mean), K&N Air Filter (Stock Air Box, Removed air silendcer), 198.9 rwhp @4200 (235 Motor!!), 285 lbs-ft @2900 (336 Motor!!!).
My Stang This Is What Dynomax Ultra-Flo's Do (Soon To Be On My Stang!)
Future Plans Call For A 351 Windsor