Springs question
I know I need either the 906 or 062 heads in order to get them to fit but my question is , how much of the valvetrain can i swap over from my gen 1 heads? Mainly I'm concerned about the springs and rockers, mine are already the stiffer springs to run a bigger cam and 1.6 rockers and I need to know if they will work. Of course I've tried using the search bar but as usual it finds everything except what I need. Google's not much help either. Also think I need to port and polish these heads? I"m wanting 400 hp and Im going to use a 276 cam, think these heads will flow enough with out a port job?
Thanks guys
the cam you want to use seems like it has way too much duration. most of the guys i know of making around 450 rwhp have cams with less than 240. 400 is very doable with a 383. its actually fairly easy on a 350.

