58cc or 64cc head?

[Coupe5oh]

My budget might finnally alow me to purchase some cyl heads, Im just wondering what head to go with for a car that gets driven about 15 mi a day (mild modded), and sees the track almost every other week, and i would most likely use the stock cam.

Im thinking of ordering some wp windsor jr.s aluminum 58 cc?

Or how about the roush iron 64 cc? im going 13.50's now on sticky tires, but just ordered some m/t sportman pros for better wet weather handling, but am looking for 13.2's @ 103-104 with just an out of the box affordable head, and leaving my car the same, except for some 373 grs coming shortly. any advice thnx......