need help 340 x heads removal of mainifolds

so i have a 68 with a 340
i want to pull manifolds for jet coating and have to replace gear box
whats the best way to get at bolts/studs on drivers side

and if any one has any input how to remove gear box i was told i need to pull colum im a mechanic so im sure i can fig it out but i fig a bit of insider input cant hurt

chubs