Jeri, I found this on the DUI website:
"*Due to the large cap design, the DUI distributor may interfere with the thermostat housing on a
460. A compatible thermostat housing is available for $25.00, part number 84859. The 302 and
351W DUI will not clear a Victor Jr. intake manifold. We can extend the height 1/2" - 1 3/4" for an
additional fee of $75.00. High volume
oil pumps are not recommended with the DUI as possible
irregular gear wear can occur. Click Here for additional information. The Street/Strip DUI has a
one year warranty from date of purchase.
Did you already try their solution and it does not work ?