cammel hump heads are not just 327 heads....the originals were...I believe 1.94 intake and I forgot the exhaust..1.58 or 1.60...later the fuelie head (327) came out as 2.02/1.60..these were cammel or double humps too...so are my angle plug 2.02/1.60 that were the early LT1 head....and those were 350's...that's the one you want....