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Stewart Way · 04-25-2012, 10:20 PM

Byron
Not sure the 275 vs 425 is that far off. Adjust for cid and the 275 goes to 325. WJ says a point of CR is 4% so thats another 12 % or 365 HP. Then the light valves, the 33% larger throttle body opening and the .640 vs .490 cam and its pretty close. What is .150 lift worth? Maybe its even in favor of the 427. Not sure the TB difference gets much since I doubt its the choke point on either engine, but it sure doesn't hurt. Either way it will make a slick stocker.

04-25-2012, 10:20 PM	#2
Stewart Way Member Join Date: Aug 2003 Location: Atlanta Posts: 476 Likes: 20 Liked 70 Times in 22 Posts	Re: 2012 Camaro in the NHRA Classguide Byron Not sure the 275 vs 425 is that far off. Adjust for cid and the 275 goes to 325. WJ says a point of CR is 4% so thats another 12 % or 365 HP. Then the light valves, the 33% larger throttle body opening and the .640 vs .490 cam and its pretty close. What is .150 lift worth? Maybe its even in favor of the 427. Not sure the TB difference gets much since I doubt its the choke point on either engine, but it sure doesn't hurt. Either way it will make a slick stocker. __________________ Stewart Way 2424 SS