Just a few comments.
You can find your compression to be 15-1 & the rings probably not be sealing.
I total up my cc's incorrectly on my motorcycle & found out I had 13.6 to 1 compression.
It started fine, idle was great, snappy throttle responce, but once it got to a certain RPM it just fell flat.
All that compression was just blowing past the rings.
BTW,, I was running 100 octane gas.
Having a compression ratio of 13.9 - 15 to 1 running on cheap gas tall gears & not pinging does not make sence @ all.
Unless you had a cam w/310 degrees duration @ .050 & a lobe center line of 102.
15.15 in the quarter?
Your friend having 9.5 to 1 & runs a half second faster than you?
It really does not make sense???
Is your car heavier than your friends car???
Could you give us a break down of your friends car & your car?
To me it just does not add up??
Unless your friends car is a drag car, lighter weight than your car was???
When you run that much compression, you would need @ least 112 octane, & w/15 to 1 that is methanol teritory.
Not trying to start anything here but to me it just does not make any logic.
