With these ported heads....what do they flow? What all was done?
Have you played with cam timing to take advantage of the more air up top?
I look at your mph and I really don't see a huge improvement no offense.
2016 VW GTI 4 door DSG
1989 Sonic Blue Mustang LX Coupe, 349 ci,
392 rwhp 424 rwtq....Mustang Dyno
"There are three kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." -Will Rogers-