i used the heads and cam chip for a short while when i had the stock turbo on a mccoy motor.
and jimmy has run the same chip with the the 430 cam and ported stock heads. PT54
i had L35's and a 430lift cam. it worked ok. wasnt perfect, but it wasnt bad at all. its a great place to start. and you can always fine tune from there.
hope this helps
e