I have a Griffin in my cuda that works awesome. It is a direct bolt in just like factory. It has 2 rows of 1.25" tubes...they wanted me to use one w/ 2 rows of 1.5" tubes, but it wouldn't fit w/ my fan and water pump setup. It wasn't cheap (about $750 if I recall correctly), but it works great and I'm happy w/ it.
I was more concerned w/ cooling capacity than weight reduction.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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