Originally Posted By DaveRS23
I have a 4500 from ThumperDart. It starts, runs, and drives better than any other carb I have ever had. I would gladly put it up against any of these 'self tuning' throttle body kits for overall drive-ability.

And keep in mind that unless the cam is very, very mild, the idle and low speed 'self tuning' on the EFI will need to be locked out and tuned manually. If a cam with much lope will be used, then the reversions will confuse the EFI and force the manual tune. Just like a carb.



I have two of his carbs....Both are excellent. But my one engine is big, and has a weird cam. Very tough to dial in.

Also not my first use of efi...

'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