Your truck will have larger radiator requirements than most of the Z'd frame trucks due to that power adder that is complicating your forward vision.
I would try posting this in the engine section for information on minimum radiator sizes or contact your engine builder (assuming that you had it built for you). You may have to build a custom core support/radiator to give you the cooling that your motor will need.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
RIP Bob Parks.
1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB repair thread
http://67-72chevytrucks.com/vboard/s...d.php?t=698377