MustangWorks.com : Ford Forums - View Single Post - GT-40 iron heads

-RootS- · 04-01-2003, 08:45 PM

I already have the 69 heads on my 351, my best time to date 12.60 at 113 mph with 125 hp on nos (nitrous in 2 and 3 gears without powershifting). I know I'm only using about 70 hp of the nirous because of the restriction of the 69 heads and I would like to know if the gt-40 "P" iron heads could help me. Is there a big difference between the gt-40 "p" and the 69 heads, will the gt-40 heads give me all the hp of the nitrous ?

04-01-2003, 08:45 PM	#4
-RootS- Registered Member Join Date: Sep 2001 Location: Lévis, Québec, Canada Posts: 12	I already have the 69 heads on my 351, my best time to date 12.60 at 113 mph with 125 hp on nos (nitrous in 2 and 3 gears without powershifting). I know I'm only using about 70 hp of the nirous because of the restriction of the 69 heads and I would like to know if the gt-40 "P" iron heads could help me. Is there a big difference between the gt-40 "p" and the 69 heads, will the gt-40 heads give me all the hp of the nitrous ?