I have a 70 340 Swinger - but couldn't pass a deal on a 73 Roadrunner - all original 340 car, bone stock except for an Edelbrock 750. Being heavier - and "neutered" in 73 - it's a dog compared to the Dart. I would do a 440 swap, but it's a 95,000 mile original so .... what can I do to get the best bang for the buck (has a sure grip, haven't figured the gear out yet as it just arrived Sunday). I have a Comp 268 left over I could stick in (?), any decent combo's would be appreciated, just want a little respect, not over the top. Thanks.