I use one of these and have gone back and forth between efi and annular carb on my one vehicle many times. Comes with two springs, and you just swap springs. My A1000 pump is in the tank...Just remember with a carb, your returning more fuel and you need a healthy size return line...

http://www.jegs.com/i/Aeromotive/027/13301/10002/-1

Last edited by Dragula; 04/16/11 11:07 AM.
'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk