[STREET6]

Ok, so I have some crane gold 1.6 roller rockers. They are for pedistals. I have Gt-40p heads I am self porting(my first time, though I practiced on some other junk heads). These rockers will work on these heads, but I keep doubting myself and am considering aluminum heads if I can find some for a low price. You know, good used condition or like the patriot freedom heads or possibly the procomps even though they get mixed reviews. most aftermarket heads use studs. I don't want to buy more rockers. I am on a self apointed buget. I don't think they will work with studs but maybe I'm wrong. ?????

I am about to take my block etc in to be machined. I have an e-303 cam and 1 5/8" mac gtp headers, performer RPM intake, holley street avenger 670cfm carb. MSD ignition. I figure with the gtps I'll have 275hp, maybe more. What do you think?
What are some decent heads for this setup that I may be able to find for a deal? how much more power would I get? Do any of them have pedistals?

Thanks all for your help.