Another way to go is to cut the 2.14 intake valves to 2.10-2.11.More costly but you won't shroud the int valve so much. Also you can put the valve at original height in the cyl head. The more the valve is sunk the less the flow. 1.75 exh valve will work fine.A little bowl work will help alot. I do this on the smaller bore engines and have had very nice results.Also saves heads from seat inserts.