Holley Sniper

[Green411]

Hi all, new member here with first post. It's so exciting..... I've recently bought a 411 S3 and am beginning to get over the shock of the fuel consumption. There's plenty of play in the carb throttle shaft yet it runs very rich so am assuming the carb is well worn.
Am probably going to get a Holley Sniper master kit, as I want the driveabilty of efi. So am very interested in anyone's experiences, good or bad, of them - particularly if you did it yourself, as I plan to do.
If you have one, what was fitting it like? Did you choose an in-tank or in-line pump? If in-line, what did you do for a fuel reservoir? What driveability difference did fitting it make? Etc etc.
Sorry if I've missed an existing thread about this topic.
Thanks in anticipation
Cheers Mark