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killintime6968 · 12-10-2013, 12:52 AM

I think 3 classes 9.5 , 10.5 and 11.5 ci per pound 360ci max. Spec type head , 12.5comp max. No exotic valve train. 750 max lift cam. No custom grinds, off the shelf only. Crank trigger ok. Single 4bbl with 950cfm or dual 4bbl with 660cfm each max. No exotic carb mods. Cast manifolds with port matching only. 4 or 5spd trans using a clutch to shift. Single disc only.

12-10-2013, 12:52 AM	#154
killintime6968 Member Join Date: Oct 2009 Location: Whitecourt,Alberta,Canada Posts: 236 Likes: 4,631 Liked 91 Times in 29 Posts	Re: OLD Modified Corvettes I think 3 classes 9.5 , 10.5 and 11.5 ci per pound 360ci max. Spec type head , 12.5comp max. No exotic valve train. 750 max lift cam. No custom grinds, off the shelf only. Crank trigger ok. Single 4bbl with 950cfm or dual 4bbl with 660cfm each max. No exotic carb mods. Cast manifolds with port matching only. 4 or 5spd trans using a clutch to shift. Single disc only.