M1 intake manifold specs

Hey guys, need some help on torque spec. I read it wrong and torque my intake bolts down to 35 ft lbs. Well after breaking one I stopped torquing them that high and re torque them to 12ftlbs. My question is do you think I would have messed up anything or should I take it off and put new gaskets? My other question is I also read it's 12 ft lbs and 25 ft lbs. Which one is it ?

It's magnum heads with the aluminum M1 intake.