Carb is a little big.
Get an MSD 6a or 6al and MSD coil. Make sure that you are getting good spark. Disconnect the vacuum advance.
Set your total timing to 34 - 36 degrees. Check it with an adj timing light at 5500 rpm. (I use 34 cause the best gas I can get is 91 octane. With 93 I would be more inclined to try 36 advance.)
For the record I had a really similar setup in my Volare and never did better then 14.1 1/4 mile.
Dan...