377 and 392
was the brake lights on during the runs
m8, I too would have thought you'd be at the figures you wanted with all you've done and spent

hopefully she'll loosen up over time and spread her legs a bit more.
Induction kit first, I too reckon you can avoid the front mount
Don't get to into dyno figures though

I know from experience that a car that hits low figures can still be all over a car with larger figures in the real world.
If your happy with how it drives now, forget chasing figures