Totes Fierce!
Do u know the weight of that truck? And a 60ft time to go with that 16.25 at 83? Guessing maybe 2" dual glasspacks? (I will try to set up a Gonkulator computer match!)
Well I've run a 390 Holley on my 250 & 292, no whistles yet. I've had em whistle at idle or decel, vac leak in base gasket. But at full throttle, never heard that sound. Try a different carb, does whistle go away?
