synthartist69

Hey guys,

From the information I have gathered it is looking like I need to go with a 650 on my set up. I like the Edelbrock Thunder 1806. But I am reading that people have had trouble with throttle response and overall power. I would like to know more about it and if a Holley 650 would be better for me. Two things I don't like about the Holley is that it is a spread bore and my performer rpm intake is a square bore so now I would need an adapter. Also, the Holley requires a dual line inlet and the edelbrock does not. I would love to hear your comments on these carbs...Again here is the set up..


This will be a street/highway racer....no dragstrip. Here is the set up...

1965 mustang GT350 tribute

347 block
Ford Racing F303 Cam
Hipo manifolds...for now (headers later)
Pro Comp castings
185cc intake runners
Performer Rpm intake
3.55 rear end
T5Z 5 speed (,63 5th gear)

67mustang302

Most Holleys are a square bore design. You might want a 750, if you are looking for something basic, Holley's street HP series, or a street 4150. Does it need a choke?

MustangFTW

how many horses you expectin out of this car?

Starfury

I've got an Edelbrock 600CFM on my 331. It's probably a bit small, now that I have aluminum heads, but it works well enough. It's a great carb that's super easy to adjust and doesn't have any gaskets below fuel level to leak. That said, it's not as adjustable as a Holley. Basically, that means that it's easy to get running well, but hard to fine tune that last ounce of power and throttle response out of. All in all, it's a good beginner carb for a daily driver.

I'm looking at upgrading in the future to something more adjustable like a QuickFuel (Holley design), now that I don't drive the car every day. I've got a little more patience to tweak things incrementally when I don't need to drive the car to work the next day.

frdnut

+1......Almost all holleys are square bore..I have NEVER had problems with a holley carb leaking or going out of tune like you always hear on these type forums..About the only issues I have had are the needle and seat hanging up and getting a flooding type condition..This was solved by running an inline fuel filter and I consider this a must if you are going to run a holley...They are very sensitive to dirt...