Help decoding a data plate

[xr7gt]

I wish I could figure out how you guys do it. Could someone help me decode this?
It's on a BC1300 bonanza I just picked up. Thanks!

 

[copyman]

Looks to be a 1970 engine. The first # of the serial is last # of the year. Also some of the serial #'s will show what month / day, etc it came down assembly line but not sure if anyone would really care about that.

 

[markus]

8th day of 1968 The number that gives the year/day built is the first set of digits after the word serial The first number is the last digit of the year, and the next digits are the day of that year. In the 60's they would stamp them like that rather than say 8008 but later on you see them that way. Do you have a shot of the throttle control by chance, wondering if its the clamp on cable with an added spring or the adjustable ferrule and incorporated torsion spring on the bellcrank (they were perfecting the dedicated "recreational" version throttle controls around that time)

 

[copyman]

8th day of 1968 The number that gives the year/day built is the first set of digits after the word serial The first number is the last digit of the year, and the next digits are the day of that year. In the 60's they would stamp them like that rather than say 8008 but later on you see them that way. Do you have a shot of the throttle control by chance, wondering if its the clamp on cable with an added spring or the adjustable ferrule and incorporated torsion spring on the bellcrank (they were perfecting the dedicated "recreational" version throttle controls around that time)

Thanks for clearing that up markus. haha I missed the 88.