Both the A and B cam have been used in turbo engines by Volvo as well as the n/a engines. With the n/a engines you will get about a 10hp increase but the main difference is that you get an engine that revs more freely above 3000. Has a wide power band while still easily passing emissions.
that said i have a B cam for sale
they are very close in lift and duration though not exact.
your trouble imo will likely kill off this change you contemplate.
your distributor is head mounted which mens the camshaft needs to be drilled and tapped to accept this configuration.
i have yet to see one... a or b that is!
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