Gt-40 Crate Motor carb jetting

[chepsk8]

Just dropped the new motor in the Cobra:

GT-40, Aluminum Head, "B" cam, 345 HP
Edelbrock Performer Intake
Holley 600 DP Carb

Current Carb Jetting:
65 Primary, 72 Secondary

If you have the same or similar combo, where is your jetting at?

 

[D.Hearne]

Performer Intake ? Why'd you choke it with that? If anything the 600DP is likely richer than you want. Drive it regularly then read the plugs.

 

[SoCalCruising]

I knew you'd take gas over the intake.

 

[D.Hearne]

Light car like that, I'd take an 1850 600 and swap the fuel bowls to center hung and then tailor the secondaries to suit.

 

[chepsk8]

Performer was on my stock 5.0

Just got it running, now to tune it.

 

[D.Hearne]

Drive it normally for a week or so then pull the plugs and see what it wants.