With a lump ported head all Valve sizes will gain CFMs. But personaly if your looking to keep some
mpgs I feel that the 1.8 is more then enough for street use Or even for a Hot street set-up.
And you do not need to Unshroud the valve as much,
as you would need to do with a 1.94. By having
the valve unshrouded The will help the flow around the Valve and also add to the CCs on the
head.(unless you remill to keep the same CCs)You
can also go with a shallow dish to get the compression your after.
When you used your desk top calculator did you also take in account the gasket thickness and,
How much the piston is down in the Bore? Or did
you go with a Zero deck?? again Personaly I would
not Zero deck a Street Block. Reason being is if
You ever blow a gasket and It ends up Burning a groove in the Block and Not just the Head. You would end up having to Find New pistons.
Because Now if the Block needed to be Milled to fix it the pistons would be sitting Outside the Deck surface. (Not a good thing dollor wise.)
God doesn't like ugly.
