Dyno Video
man you had some bad luck ,i ran nos for 20 years my 360 similar to yours stared to bend std rods and domed 2 flat tops after 3 years 150 hp and 200 for 3mths it never broke ,i had a single plane for years then duel plane for the last 6 mths i think that the 2 front cld were leaning out with the duel plane ,yours might have leaned out a bit as well and the ring gaps are very critical on kbs seen that mistake made as well your new combo is simlar to mine as well i have the cnc -1 indys and 408 my 360 ran 11.00 @122 in a 3550 lbs car and new combo has ran 10.3@133 still more on tap.