I have made it to the track 4 times since I got the 3.73 gears in and made 19 passes. I have mixed feelings. My 60 ft times are a little better as they are from 2.07 - 2.19 Where as before they were usually in the 2.20s-2.30s with a rare 2.teen. 1/8 has improved to a 8.848 from a 8.973. and my 1/4 time has gone from a 13.87 to a 13.74. I was hoping for more but improvement is improvement right. I still spin quite a bit so I am sure if I get it to hook it will get better E.Ts. My MPH is about the same, ranges from 98-100. That is the same as with the 3.08 gears.
I ran around 45 passes with the 3.08s so I figure If I get that many passes with the 3.73s maybe I will see better improvement. I also did have the timing changed to no vacuum advance and be all in at 36 degrees by 3200 or so. Other than that no changes. Last time I went out I was having trouble with 3rd gear and missed it three times in 6 runs. Normally I miss it once a night at most. Not sure if it was me being stupid or if their are issues there? Will find out Friday this week as I plan on going out agin this week. (Hopefully). I think my next change will be to go with an Edelbrock RPM and a Holley? (750 vacuum sec.) What do you all think?
P.S. I love the way the car drives around town now. The new gears did make it a much easier and fun car to drive in town! Thanks Vern.
I ran around 45 passes with the 3.08s so I figure If I get that many passes with the 3.73s maybe I will see better improvement. I also did have the timing changed to no vacuum advance and be all in at 36 degrees by 3200 or so. Other than that no changes. Last time I went out I was having trouble with 3rd gear and missed it three times in 6 runs. Normally I miss it once a night at most. Not sure if it was me being stupid or if their are issues there? Will find out Friday this week as I plan on going out agin this week. (Hopefully). I think my next change will be to go with an Edelbrock RPM and a Holley? (750 vacuum sec.) What do you all think?
P.S. I love the way the car drives around town now. The new gears did make it a much easier and fun car to drive in town! Thanks Vern.