So which Holley 4150 is best ?

[8T03S1425]

Now, seeing that good info has long legs and life span, and a properly executed search has returned the desired info, are we still having to accept that the info on SAAC Forum 1 is truly lost? Reading the discussion with contributions from our Heavy Hitters Dan, Drew, Doug, and Randy certainly adds credence to a topic where respected opinions matter.

[Drew Pojedinec]

The only real negative about the thread is no back to back testing.

600 double pumper vs 715 3259-1

Out of the box, I would typically think a 600 makes for easier running, the 715 with effort to dial in will end up being the top performer.

Of note too:
The carb he sent me was actually super freakin cool.
It was an original 3259-1 but it had zamac welded like I've never seen before. The effort put into making the carb a double pumper with staging linkage was pretty cool.
As delivered to me, it was in VS form, but the secondary pump nozzle boss and the boss for the linkage was still present. It was clearly modified after 1970 as it used a first issue double pumper baseplate (before I got it)

I'd have bought the carb from him just to convert it back to race form.

Drew

[Drew Pojedinec]

Here... the details of his carb as delivered to me.

https://www.facebook.com/share/1hxFn4i5HmgFKxgv/?mibextid=WC7FNe

[98SVT - was 06GT]

You should try the 715 when I'm done before making any other decisions.

Leave that fresh rebuild on the shelf - especially if it's one of Drew's excellent restorations. The car runs fine how it is. Put the 715 back on if you decide to restore the car to original.