Holley 1850 replacement carb

[stocker396]

I personally took and 1850 side by side with a 3140 (the #'s correct for my 66 396) to Pomona last year and Bruce B said No Problem its OK!. You can PM me for details on this app. I already have Dyno'd this carb on a 396/325 back to back with a 3140. Also talk to Scooter Vester at Quick Fuel. He has a approved carb as well.

[Jason]

Originally Posted by stocker396

I personally took and 1850 side by side with a 3140 (the #'s correct for my 66 396) to Pomona last year and Bruce B said No Problem its OK!. You can PM me for details on this app. I already have Dyno'd this carb on a 396/325 back to back with a 3140. Also talk to Scooter Vester at Quick Fuel. He has a approved carb as well.

Since when does a center pivot dual line Holley get to replace a square bowl single line Holley? Your photo is questionable if that is the 1850 replacement.

[stocker396]

Yes the Quadrajet is Bigger BUT it has its issues.Bigger does not always mean better. Holley is easier to tune.
As for the Holley, We have run it in several versions. Changing the bowls and metering plates is legal as far as I have been informed. The unit on the engine was the one looked at by tech.We ran in 5 carbs that day on the dyno. If for some reason someone wants to protest it changing it only takes minutes. It is just easier to tune this way. I have multiple carbs in different configurations- Centerhung dual block,Center hung 1 block 1 jet plate, Side hung transfer with jet plate. The thing was to get a tuneable secondary and adjustable floats. After all is said and done it is still 1562 x 1562 /1250 x 1313 and says either 3140 or 1850 the rest just bolts up no different than jetting, the main body is untouched and still legal. I have seen ALOT worse go through tech. Besides the Quick Fuel is legal too, Have you seen that?! It looks 10x better than the swapmeet/ebay stuff we are playing with.

[Dave Gantz]

Originally Posted by stocker396

Yes the Quadrajet is Bigger BUT it has its issues.Bigger does not always mean better. Holley is easier to tune.

I understand the easier to tune aspect, but isn't the Q-jet 750 cfm? Seems like a lot to give up. Maybe I'm thinking of a Thermoquad...

[Stocker 2]

Originally Posted by stocker396

Changing the bowls and metering plates is legal as far as I have been informed.

Square bowl must remain square bowl, 4160 must remain 4160 according to tech.

[Lee Valentine]

I'd say if the Holley out runs the QJet you should have somebody else do your Q Jets

[Dave Gantz]

Originally Posted by Lee Valentine

I'd say if the Holley out runs the QJet you should have somebody else do your Q Jets

That's what I was thinking, but I don't have a lot of experience to go by.

Imp stocker (Will?), have you found the Holley faster? I'm just wondering why you would run a smaller carb, being that the HP is the same with both.

[Alan Nyhus]

Here is the Quick Fuel SSR-585-VS carb that is NHRA approved for SOME (not all) 1.562 throttle plate/1.250 pri. venturi/1.313 sec. venturi applications:



Side hung float bowls and NO secondary metering block. Here's the press release straight from Quick Fuel:

http://www.quickfueltechnology.com/m...qft-ssr-585-vs

It's not listed as an NHRA approved replacement for ALL applications that share these same throttle bore and venturi sizes. And not all the little Holleys are the same for Chevy applications. For example, the small Holley for the '66 327/275 have 1.500 pri. and sec. throttle bores and 1.187 pri./1.250 sec. venturi sizes.