The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

hjewell2 · 09-02-2019, 12:46 PM

DUI is a Great HEI unit. If you call them directly you can get a custom calibration on the spring and weights with an adjustable vac adv.

09-02-2019, 12:46 PM	#9
hjewell2 Registered User Join Date: May 2011 Location: mich Posts: 654	Re: Hei DUI is a Great HEI unit. If you call them directly you can get a custom calibration on the spring and weights with an adjustable vac adv.