carburator or fuel injection debate.

It's been about 2 years along in the 71 dart build, but I have a budget issue now. This hasn't been a non-budget build but it has been a wait and save to get the parts I want project. I have moved springs in, mini-tubbed, built and shortened 8 3/4 rear, new ralley dash, replaced fire wall, rear disk brakes, new rims and tires, carpet and lots of other little things along the way.

SO the question is???
I bought a FAST fuel injection 2.0 system about 18 months ago. (approx 2700$ cdn)
FAST 30227-KIT - FAST EZ-EFI Self-Tuning Fuel Injection Systems

I finially got the motor finished 2 weeks ago and on the dyno last wednesday. The motor is completely new build, pistons, RPM heads, RPM intake, H-beam rods, Comp cam, solid lifters, roller rockers, balanced forged crank etc.
The break-in and dyno runs were done with a 830 cmf carb because we wanted to make sure the motor fired right away for the initial breakin of everything.
Best we could manage was 508hp @ 5800 and 551 tq @ 3750 all on the carb.

I now have a budget to finish the rest of the car, because of work changes and other life adjustments for lack of better words. It may take another year or 2 unless I change some of the idea's I was planning to do.

Do I sell the fuel injection system and buy a carb for this motor freeing up a good chunk of money? or just wait a little longer to complete the rest of the jobs left to get the car finished?

If selling the carb is the best way? What would you recommend and what would this fuel injection system still be worth? It's a complete package still in the box.

Thanks, :coffee2: