Bob,
When starting out in the big block world, I was cautioned
numerous times to be careful about buying any BB engine
without checking cylinder head casting numbers for exactly
the reason you mentioned. Seems that a common ploy used to
be putting a rectangular port intake on an oval port engine
and selling it as an SHP verient. I heard if it being done,
but never with a positive spin regarding performance.
I would think that the great interruption of air passing
through the rectangular passages of the intake hitting the
oval ports of the heads would be counter productive to air
flow due to turbulance.
In your opinion, how well does this setup perform? Just
wondering.
Steve