[slowbubblecar]

How long do you plan on running the 7 bolt and what your mods are should be considered in it also. If you didn't plan on keeping the 7 bolt for a long time, you could use the 2600. What are your mods? Do you even need a 2600 right now? Who knows if your motor is even walking at all. The only reason I swapped a 6 bolt in is becasuse mine was starting to walk. I would have rather kept the 175 across compression. You should get yours checked and see if it is even walking. I wouldn't waste the money on the bs elim or aprs if you don't plan on keeping the motor for a long time. I didn't think the new bearing helped prevent crankwalk. I though it more or less just prolonged the life of the motor before it was walked.