[apstguy]

Early 700s had a life of 145,000. Less if you weren't nice to them. In the 350 vs 700, wouldn't the engine rotation vs driveshaft speed would be different because the torque converter would still slip some (unless you got a TH350C) so the actual ratio isn't 1, it would be slightly more. A 700 is definitely .7 because the converter locks. That just came across my mind but I thing the differnce would be too small to notice. I do have to say I now have a Bowtie overdrives TH700R4 stage 2 and it rocks. My cousin got in and said This thing shifts like a @$@! I love it! - Give it some gas and it shifts FAST. Faster than I could ever shift a manual. They use a 88-93 core so you don't have to worry about the earlier's failures. I do have to say my 305 is not enough engine for the tranny - it has the corvette servo in it so to increase speed on the freeway, you have to almost floor it - The 305 bogs if you push halfway down & it doesn't downshift. I guess I'll just have to get a 350...