x2Looks like your ready for H/C. Thats if you already have the cobra intake.
You could probably gain 20-25hp by home porting the stock heads but since there's a wide choice of aftermarket heads, I think you're better off taking that route.hey bullitt...you think its worth porting the stock heads? how difficult was it to put your RR's on?
Agree about saving for aluminium heads, but you can get a lot more HP out of the stock E7 heads than you might think. I was talking crank HP by the way. Aftermarket aluminium heads should yield at least 40 crank hp and a 40lb weight saving.your never ever ever going to see 25rwhp on ported stock heads...
save for aluminum heads and a custom cam..
AFR are good heads...i have twisted wedge and they're nice..but i think the holly is a great intake..especially if you had it ported