>
> OK, I have the feeling that asking this is like trying to discuss religion
> or baseball, but here goes anyway. Looking for the relative merits of a
> Holley carb vs a comparable Edelbrock. This is for my '71 Mach, 351C
> motor. I realize that Holleys had a reputation for blowing out power
> valves, but their literature all seems to indicate they have "power valve
> blowout protection" to remove this possibility now. The Holley strikes me
> as easier to hook up to my existing tranny kickdown & throttle cable.
>
> I had almost decided on the Holley (model 80457), but am rethinking this in
> light of a trusted Mustang restorer last weekend telling me how little
> trouble they have with Edelbrock vs Holleys.
>
> Your thoughts (sans emotion, please)?
>
> ---
>
> Dan O'Reilly
> 1971 Bright Red Mach 1
> 2002 Black Deluxe Convertible
> Colorado Springs, CO
>
Dan,
The Edelbrock carb is probably more trouble-free just because it is not as easily tunable as the Holley. There are a lot of "Holley Experts" that swap throttle bodies and cut choke housings and then complain that their Holley is junk.
Both are good carbs right from the box - IF they are properly selected for the application. The Holley is more easily tuned for a specific use and application but for most cars it is a bolt-on and go carb. For street use a carb that is rated in the right CFM rating with a vacuum secondary is the best way to go. For the strip a double pumper in a slightly larger size will give the top end performance.
The biggest draw-back for the Edelbrock is the "air valve" secondary set-up. It is nothing more than a spring loaded choke plate installed to make sure the secondaries pull fuel when they are opened. This one feature is a real restriction in a performance application.
In your application a Holley 730 - 780 CFM vacuum secondary 4150 would be the ideal carb - depending on use. I am assuming it is primarily a street cruiser. Before deciding that poor running is a carb issue work over the tune-up first. Most often "carb" issues are just poor tuning. If your application is street only and you want good manners then look at the Street Dominator series of Holley. They are good carbs for that application and are completely plug and play.
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