Well the first time i raced my iroc since the carb swap it ran the time on the left the second time i ran it to weeks later it ran 3 tenths slower what gives??

5 psi fuel 12 degrees intial timing 6 psi fuel 14 degrees intial timing
R/T .353 .205
60' 2.017 2.067
330 5.848 5.975
1/8 9.101 9.251
mph 74.97 74.42
1000 11.936 12.130
1/4 14.320 14.612
MPH 94.88 90.11

second time i ran it it was alittle hotter i believe did 2 degrees of timing cost almost 5mph?

 

Weather plays a big part. I have seen my timeslips change more than that all in one night. Usuraly goes the other way because it is getting cooler as the night goes on but maby that day it was just hotter and humitity was higher.

 

put it back to 12 degrees to see if it picks back up.