It's just too cold to put it on

 

Fenton split manifold nos

 

Super nice!

 

 

Do these units noticeably bump up performance on a stock truck? They look nice, are the particularly rare or expensive?

1956 223

 

Looks like it will handle a 4bl carb so that should give it a boost in performance..

 

Yes, as long as you don't go too big on the carb?

 

I've got a Holley 600 cfm that I'm planning to use but I fear it may be a little on the large side. I do have a good street cam grind and some headers on it. Not gonna be a tire smoker but should make OK power. I've read these motors have air flow issues anyway.

 

A 600 is allot on the large side . Too big = slow air velocity = poor air fuel mixing . Edelbrock and many others have a carb sizing program . My 408 stroker , aluminum heads , 512 lift only calls for a 600cfm because of the realativly low 5500 rpm redline .

 

That's cool. I have another home for the 600 anyway.

 

The Holley 390 cfm Classic would be idea. Several of us are using them on V8s which isn't that much larger than your engine. Holley has a carb selector on their website.