You sure these are correct ? The TSB sheet for the intake manifold says the lower plate bolts for the manifold need to be at 84 inch lbs.. and the upper outside bolts need to be at the 12ft lbs.. You have it backwords.. Unless yours is right and theres is wrong.. because i torqued my manifold down 12ft lbs, and the pan bolts to 84 inch lbs.
See the lower bolts need to be at 84 inchs lbs.. Not 12ft lbs which is 144inch lbs.. the manifold itself is what needs to be at 12ft lbs.
2013 6.2 V8 Camaro SS 3,000 miles :-)
1998 5.9 V8 Limited Platinum ZJ 144,xxx miles
1998 4.0 I6 Laredo ZJ 203,xxx miles Yay !