i got the alumn. cobra jet heads. Am looking for some more hp, would I get more out of blue thunder stage II heads? or can I match my existing ones if I was to port it out? My engine is a 520
stroker with double holley 600's, blue thunder intake, cj alumn heads. Dynoed 435 rwhp. Want to change the cam too. If someone can help me with desk top dyno too see what combo will get me the most hp
THANKS GUYS
