Repowering with 5.7 Vortec long block which intake manifold and carb

[84EdH]

I am repowering my 1979 Century with a new vortec longblock and am looking for some advice on an intake manifold. I am in fresh water lakes in Pennsylvania and cool with raw water.
also, I have a Rochester quadrajet and a newer Weber (1995 Merc 350 Alpha) 4 barrel.
any suggestions on which carb to use?

thanks

Ed

 

[Bondo]

Re: Repowering with 5.7 Vortec long block which intake manifold and carb

also, I have a Rochester quadrajet and a newer Weber (1995 Merc 350 Alpha) 4 barrel.
any suggestions on which carb to use?

Ayuh,... The Weber on a dual-plane manifold of yer choice...

 

[84EdH]

Re: Repowering with 5.7 Vortec long block which intake manifold and carb

ok, that was easy.

 

[dan t.]

Re: Repowering with 5.7 Vortec long block which intake manifold and carb

Use the q-jet , far better carb, better fuel metering, triple boost venturies,will give you better idle and low speed throttle response and better fuel milage. Edelbrock manifold is as good as any.

 

[FreeBeeTony]

Re: Repowering with 5.7 Vortec long block which intake manifold and carb

The Edelbrock 1409 worked great for me right out of the box.......only needed to tune the idle mixture.

 

[dan t.]

Re: Repowering with 5.7 Vortec long block which intake manifold and carb

Try them both, the Edelbrock performer will accept either one , then judge for yourself. The q-jet will always get better fuel milage.