Carb suggestions?

 

Anyway, Looking to the experts for advice on a carb.  New crate motor 330hp and 360 tq.  Currently, stock tranny, may go to 700r4, stock rear end, 3.07 as I recall.  I'm thinking of a 600 cfm from Holley.  What about keeping the original q-jet?

 

When it comes to rebuilding an engine I am a shmutz(sp?). I can change an intake and a carb, thats about it as far as the engine goes.  That's why I bought a crate motor. 

 

Also, what headers have worked for your application.  What are your feelings on the heat wrap they sell, the stuff actually work?  I've placed the heat shield/blankets under the rugs.  The driving compartment did get a little toasty as I recall.

 

 

If a Q-jet is not available, my own preference would be an Edelbrock Performer carburetor...they're simple, easy to adjust and maintain their adjustments. Get a Performer 600 or 650 with electric choke and you should be quite happy.  Get either an Edelbrock Performer or Performer EPS intake (the EPS is made strictly for a square-bore carb and is optimized for them).  

After that I would choose a Demon or Holley carb...preferably the Demon.  If you plan on racing the car, they may be better choices, but for the street and street performance, I believe the Q-jet and Edelbrock are better.

For whatever brand headers you buy, don't use wrap on them...that will void the warranties and supposedly promote rust.  Get ceramic coated...it costs a bit more but will last longer, maintain its looks better and help with the heat.

As far as what brand headers, I like Sanderson, but there's lots of good brands.  You first need to decide what design headers will do what you want.  Block hugger headers fit well, don't hang close to the road, but don't give max power.  Long tube tuned headers provide more power, but often cause clearance problems.  Tri-Y headers increase torque, but again, can create clearance issues.  Figure out what characteristics you want and then decide what style headers best suit that...then find the brand that best fulfills that.

These are all my less than objective preferences...someone else may well disagree or have their own preferences, which is fine.  As I said...you have to decide what you want out of the car, then determine what mix of parts will accomplish that.  Mixed parts that work in unison will do you better than a lot of expensive parts not matched and end up working against one another.

 

I'll look at those ceramic coated headers.  I want to do this right the first time and not have to redo stuff later.

http://www.thequadshop.net/

The rebuilder there is named Jim McGowan in Rockford, Ill.

He rebuilt mine and did a great job! What I liked was that he wanted to know about my motor and what I wanted from the rebuild, i.e. type of driving.

Let us know what you decide to go with.

Kevin

 

 

95% is very optimistic...

 

i usually use 90 as a high figure.  with reality on street engine really hovering around 80-85%