I've been reading up on both the Fitech and Holley Snipers on various forums for awhile now. I even talked to a guy running a Fitech at the local car show today. From what I keep hearing and reading the Holley Sniper is just overall a little bit better setup. I even heard that from the Fitech owner. Also from what I've heard, Holley has much better tech support. If you decide on the Holley Sniper, here's a couple of great tech forums to check out. https://www.facebook.com/groups/SniperEFISupport/
https://forums.holley.com/ Holley also sells reproduction gas tanks that are baffled and setup for internal fuel pumps if you want to go that route. I'm planning on running two Holley Snipers on a tunnel rammed 493 stroker.