Holley HP Series Carbs

[GregWeld]

No need for a choke on a car like this... IMHO

[Flash68]

The new Ultra HP is the best carb Holley has ever made. Even my engine builder who only likes the $1000-1500 carbs from Braswell or Bob Book said it's pretty dang good out of the box and wouldn't throw it in the garbage if I brought him one.

[Sieg]

Originally Posted by GregWeld

No need for a choke on a car like this... IMHO

Thanks - I typically warm the old skool think up to at least 130* before it moves so I should be able to get the tune close enough that it won't require a lot of babysitting until 130*

Originally Posted by Flash68

The new Ultra HP is the best carb Holley has ever made. Even my engine builder who only likes the $1000-1500 carbs from Braswell or Bob Book said it's pretty dang good out of the box and wouldn't throw it in the garbage if I brought him one.

Thanks Dave, that's great information.

.........I didn't know you actually had an engine builder. I thought you only had a parts advisor and machining specifications specialist on retainer.

[sik68]

I'm running a 780cfm chokeless carb on my 355 (236/242 SR) and on the street it is definitely soft below 2500 rpm, and doesn't really come into its own until 4k. I think if it were more of a driver, I would really appreciate the 650 carb on it.

I dont miss the choke one bit though like the other guys are saying. 2 pumps, fire it up, idles on its own from dead cold.

[Sieg]

Originally Posted by sik68

I'm running a 780cfm chokeless carb on my 355 (236/242 SR) and on the street it is definitely soft below 2500 rpm, and doesn't really come into its own until 4k. I think if it were more of a driver, I would really appreciate the 650 carb on it.

I dont miss the choke one bit though like the other guys are saying. 2 pumps, fire it up, idles on its own from dead cold.

Thanks Steven, great confirmations!

[Sieg]

This Holley technical document pretty much closed the sale for me: http://www.holley.com/data/Products/...R10565rev1.pdf

That and the functional improvements made to the new Ultra HP over the HP: http://www.holley.com/0-80802HB.asp

Poor man's fuel injection!

[Vegas69]

I wouldn't go that far. It's a cool carb but modern fuels aren't meant for carburetors and I don't see anyway it will prevent heat soak or flooding under heavy braking. Then throw in worse gas mileage and cold performance. Back off the cam a touch and throw EZ EFI on it and be done.