GN1 heads

[thessman]

I just bought a set of GN1 heads and 1.55 roller rockers cheap. Question is:
Will they make a noticeable difference if I stick with my comp cams 212/212
FLAT TAPPET cam. I really dont have the extra cash ( I have 3 kids) for the roller set up. I was thinking the roller at a later date. thanks.
Steve

 

[forcefed3.8's]

You probably won't see much of a difference from good ported irons to out of the box GN1's at your performance level.