From what I've read, Isky ended up with alot of Mcguirk's patterns and stuff after Frank passed away and "Mcguirk Engineering" became just a small shop under Isky's roof. I wonder if Ed kept any of Frank's cam patterns? Wouldn't it be interesting to tune up those grinds with what we know today about airflow???
It sure would be cool to hear from someone who has done "FULL RACE" porting and air flow work on these heads to see if there is much of anything us shadetree boys could do to help out the exhaust ports - time vs. benefit.
Thanks panic for putting in the theory behind single pattern cams and port balance. Good food for thought!!!
- Tim
