Just curious when you install your UMI solid mounts did you have to drill a new hole on either side?I bought the umi solid motor mounts for the frame and for the block and i couldnt find 4 holes that match up... and the solids have a different bolt pattern than factory mounts. this is also going into a 84 grand prix, idk if they didnt drill holes for the sbc or not but its kind of puzzling... when i get home from work ill check and see if i can get 3 bolts in them.