Well, I'll take a stab at the quarter mile number... You're not going to like it!
I think that you will be in the high 13's and trap slightly above 100 mph. At close to sea-level.
You are going to need to supercharge your car to get where you were at with the large displacement, N/A pushrod engines.
I'll be interested to see how your car does N/A in the half and mile.