Jerry :banghead:. Please don't sell that car...
This is a sweet 70' 340 Dart with a solid rebuild, regulation bolt on's, a streetable cam, and 3.55 gears! It's been mid 13's @ 105 on street tires with little traction as he drives it to and from the track.
More power is always helpful in overcoming the lack of efficiency for track times and I hope you get there. The stock Eddies and 1.6 rockers will probably get you a extra 20/30 horsepower with your current setup. Will that be enough to post a 12sec slip. I don't know?
All I know is, I'd hate to see you get frustrated enough to let that car go.....There's so much potential in it as it sits.