Looking for everyone's opinion. Dad is redoing his 68 fastback. He's putting all new motor and transmission in it. So the question here is if you were to rebuild what would you go with?! Don't want anything too big though we are not cutting car to fit motor. Also doing a manual transmission. Let me know your perfect setup!

 

If it were me I'd do some sort of stroker motor, 347 or 408W, with a T56 and holley sniper EFI.