Pump gas or race fuel?

@Jonnylightening, first question, dome or dished piston? If a dish, how sure are you of the volume of the dish.
When i ran your cam through wallace, it said your intake close was at 70° atdc. Four degrees probably makes a difference. Have you degreed your cam? Is that where the (almost) 74° comes from?
Whoa, wait a minute, back up the truck! What the hell is intake closing point AT FIFTY THOUSANDTHS ? Is it closed, or open at .050?
I think they mean at what degree is your valve .050 away from closing, tho that is NOT what they said. There is your error, you input your ACTUAL closing point. Probably thirty or so degrees later than the number they ask for.