PTC converters switches hands

Wow Boosted !! thats a nice improvement !! reminds me of a similar situation for me years ago : my 340 was broken and I threw a 318 in just to keep racing it ran 13.20s ( 318, 360 heads and a 340 cam , 904 , 3.91 gears ) I had a 10 converter .. I put in a Turbo- Action 8 inch ( still have it and run it today as well as an identical spare both redone by Ultimate ) my 60 fts dropped as well as my E.Ts from 13.20s to 12.60s