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Mike Pearson · 12-22-2019, 10:49 AM

I have run both with my Camaro. It has a 327/275 combo rated at 295. When I ran GT/IA before I had to claim 299 hp and add 40 lbs plus take a .05 hit on the index. I think I read where they lowered the 327 GT factor back to 295. Yes you might have to claim it as the 68 combo. Check the guide.

12-22-2019, 10:49 AM	#4
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,444 Likes: 613 Liked 1,917 Times in 575 Posts	Re: gt class question I have run both with my Camaro. It has a 327/275 combo rated at 295. When I ran GT/IA before I had to claim 299 hp and add 40 lbs plus take a .05 hit on the index. I think I read where they lowered the 327 GT factor back to 295. Yes you might have to claim it as the 68 combo. Check the guide. __________________ Mike Pearson 2485 SS