i was thinking of Redcliffe Performance or whatever they call themselves.. Redcliffe Dyno or something.. i have seen that they have a few hard chargers coming from that shop.. do a google they have a site....
I've heard the '69 heads are good to port because they had very little core shift in that batch, which makes the port walls, bowls, ect, an even thickness and more predictable to port. Just in case your'e interested. I think they also had bigger exh valves?
If you don't mind going out of state.
A guy named Kim Baker is real good with Winsors, has his own big flow bench and engine dyno room, plus Sunnen line honer sunner cyclinder king and Stewart warner dynamic engine ballancer can change ballance factor. last time i saw him he had some Trick Flow heads that fit Winsors.
but up to you.
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