Not for my Z, but I figured the information could be used for the Z guys just as easily.
This is for my 71 Chevy truck. I am currently running a Holley 750 Double Pumper, but I know it is wayyy over carbed. So, in an attempt to make it a bit more fuel efficient and the throttle a bit crisper, I am going to replace it with a 600 cfm carby.
So here is the question. Which carb is best for these purposes (I have always been a Holley DP user):
Option 1:
Get a Holley 600 cfm Double Pumper
Option 2:
Get a Holley Street Avenger 670cfm (I think the 570 cfm will be too small)
What are the benefits/cons to this 'new' carb?
Option 3:
Edelbrock performer 600 cfm carb. Again, benefits/cons to this type of carb?
Option 4:
Go Fuel injection....not really an option due to cost. (even with MS, I would still need to buy a bunch more stuff).
Here are the engine specs:
350ci (not been bored, std bore)
Vortec heads
L98 Corvette cam grind.(heads have upgraded valve springs)
Edelbrock Performer RPM manifold
1" carb spacer
1 3/4 primary full length headers
TH350 tranny (soon to be upgraded to TH200 4R)
The engine almost never sees any more than 5000rpm, and even then that's rare.
Any words of wisdom, experiences etc....