89muscle

damn you people got problems. its a forum for gods sake. talk about mustang s**t snd not s**t about yourselfs. thats not the point of the forum. cut the bull sh*t.

horatio102

My 91 (when I bought it) put down roughly 205 hp with mac shorty headers, off road h pipe, and 40 series flowmasters.
It also had 25% loss in one cylinder and a stupid N2O tuning chip on it.

It really depends on what shape the motor itself is in. Assuming it doesn't need rings or a valve job (and the gaskets are good) then you're probably looking at somewhere near where he said.

Syndicate

Whoa.. overeaction on someone giving out perfectly good information or their opinion. But +15hp with the small mods including k&N A/f etc. + "stock hp on the 91"
-10hp to -15hp from over 100,000 miles of driving the piston rings that long, thats my opinion. maybe someone can correct it if im wrong.