Strummin67,
No rule of thumb but with over 1000lb less weight:
* If it's still a 1-barrel either cam (240h or 260h) would be about the same, my guess
* If it has a 2-v or 4v or 3x1v etc then definitely the 260h will be faster.
Detail about your wagon:
* Trans? (Converter if auto?)
* rear gear?
* Tires?
And engine:
* Carb/intake?
* Head work?
* Compress?
* Exhaust & pipe[s]?
Then I can crunch some numbers. Too bad it is so far to a dragstrip for us, SearsPt or Sac are so far away. There's a Nova NIte at Sac Raceway but it is so far I havent been in a long time
