Hey guys been awhile hope everyone is doing well. Looking to install an 500-600 hp efi kit. Need some input on the Holley sniper kit,fast efi kit,and the fitech kit. Reason why is a friend of a friend had a lot of trouble with the sniper kit, Holley sent out 2 kits and still had trouble.He ended up going with the fast kit. Thanks Nova freeks now let the fun begin.