I finally got a shortblock to replace my 350, its 385ci and with my 64cc afr's itll be 10.4:1. The paxton will make 5psi max (probally 3 but better safe than sorry) on this setup. the rings are file fit right now for nitrous but I have to pull the rotating assembly out and was thinking about new moly rings. Im scared to file fit myself as Ive heard theres more chance to ruin them than get it right. The block only has 6k miles since rebuild so maybe I can reuse the old rings. Or should I just order a set from summit and put them in? What should I do in your opinion?

 

If it was made for nitrous i'd rerun those rings. Dont need anything special for 5psi boost. File fitting isnt too bad tho if you decide to change them out anyway. Just becareful with the rings so you dont break them when putting them into the bore and get them as level as possible when checking gaps