When To upgrade heads???

[liv4gnz]

i know the flow numbers of your heads makes a good combo concerning other parts around it such as cam and turbo and stall


im just gonna be using ported stock heads like by what power level will they become a huge restriction?

if you can see the sig money is gettin tight and over the budget now with the trans lol so how long to wait before i dish out for a nice set up heads?

 

[JDSfastGN]

bigger valves or stockers? A good set of ported iron heads will outlast that TE44 before they become a big restriction. Ported stockers that were done right have been 9s