A lot of different opinions here,and they are all good.It just comes down to personal preference and how deep your pockets are.I have the 55 with a well tuned 350 in it,and it is a blast to drive,just listening to that 350 exiting thru headers and Flowmaster mufflers,is sweet music. Then there is my 65 with a 500 Caddy engine and a 400 Turbo trans.Both great runners and I wouldnt have them set up any other way.And to you guys who want to run a Ferrari engine,that sounds like a blast,but it aint gonna be a stovebolt anymore,same case with my trucks they aint stovebolts anymore,but I like them that way.