anyboby smallblocked a 70's colt?

set that 360 in the colt this weekend,after cutting the firewall and trans tunnel out of the way. when mounts are aligned with crossmember...oil filter is WAY close to the idler arm,and dist. is gonna be right on the firewall. in a joking way, i called my buddy up and told him i found our answers...383 has front dist. and oil filter. then reality set in....i measured a 383 and my god..they are so close in dimensions its not even funny. that 120 lbs might be a good trade off. looks like im changin directions!