Considering Holley sniper EFI for my 1969 340. Thoughts from people who have that set up?

I installed the sniper setup with the sniper distributor and retrofit in tank regulated pump. Hooked up to the factory fuel line. Added an inline FI filter around where the factory fuel pump would be. On a stock 71 340 4 speed.
Only issue I have had was a bad TPS. And the Fuel gauge stopped working early on.
Had to install a real alternator to handle the extra load too.
I also installed the progressive throttle linkage because it was so touchy with throttle response and a hard pedal.
I never had it professionally tuned.
Nor have I messed with Holley software. Just what I could fool around with on the touchscreen.
It runs absolutely awesome!