Will a 600 vac sec carb work on stock 289? FIRE!!!!

[JC6715]

I know I am building out of order, however, a minor engine fire on my daily driver has motivated me to switch out the stock carb, quickly. I am looking at the Holley 4160 with vac secs on top of a Weiand Stealth. Will the car be able to handle that big of a carb with relatively stock exhaust?

Here are the car specs, '67 289 2bbl with dual exhaust, stock exhaust manifolds, pertronix ignitor II with coil, 100 amp alternator, stock everything else (heads, cam)...

As for the fire I was able to get it out quickly. I'm thinking the float is shot and caused gas to spew out the vent in the bowl. The fire just fried a little wiring and my plug wires. It happened in a parts store parking lot So I was able to buy replacement parts while I was waiting for the tow truck...

Thanks for the help guys...

 

[D.Hearne]

Yea, a 600 is perfect. You can tailor the secondaries to open sooner or later, depending on engine demands. The secondary spring they come with is a little stiff for it. A lighter spring will let the secondaries come on faster.

 

[chepsk8]

600 Carb

The 600 CFM Vac secindary carb is perfect. One reason I like the Holleys is that they are tuneable. I had that carb on a few cars, from Chepie, which was a stocker, to the DCVER, which had a healthy 289. In both cases, once I got the carb set right, they were great.

If your motor is stock, you will probably end up dropping primary jet sizes. If my memory is correct, the carbs arrive new ith a primary jet size around 65. In Chepie, I ended up around 60 (maybe 59), using the exhaust pipe color, exhaust smell, mileage, and driveability as my tuning indicators. I also got the spring pak for the secondaries, and ended up with a softer spring to bring the secondaries in quicker, as well as fooling around with the accel pump. The Power valve should be fine as is.

Lots of infor here on the forums, just ask!:SNSign:

 

[JC6715]

Right on. Thanks guys.

I think I discovered what caused the float to stick... I pulled the filter that hooks up to the carb, and it's only about three months old. Tapped the inlet side against my hand and all sorts of rusted out gas tank filled my hand. This leads me to believe some of this was sneaking past the filter and causing the needle to get stuck open.

Looks like I will replace the tank and see if that helps... I will be doing the carb upgrade sooner or later, just looks like it will be later now... Darn.

Thanks again.

 

[Dark Knight]

MIght look at the holley 570 street avenger too..

 

[HistoricMustang]

Yea, a 600 is perfect. You can tailor the secondaries to open sooner or later, depending on engine demands. The secondary spring they come with is a little stiff for it. A lighter spring will let the secondaries come on faster.

Ditto.

She may run a little on the rich side with jets supplied by Holley.

This is the carb I run on my street 'stang.

HistoricMustang
www.historicmustang.com/tech.html

 

[ga289stocker]

I ran a 600 holley vs on my 289 mild engine/stock heads w/ same wieand intake for years. it did a great job and never needed adjusting, finally replaced it w/ a 4150 600 dp as I have a 4sp and it works great to.