Slowcreek, I think that you could pick up maybe 5 HP with a change of LC's. I would advance the intake one hole to about 99 and verify that you have at least .050" piston-valve clearance then retard the exhaust two holes to about 108 and check that you have at least .100" clearance. Then take it back to the dyno.
This one hasn't been on the dyno. It's my Sport Sedan. It will be soon though.
I'll take the timing changes to heart though after that.
It's Giuseppe's giubos, not Guido's guibos, on my 78 Spider and Sport Sedan
REFRESH CONNECTIONS BEFORE REPLACING COMPONENTS