i have all the bolt on and all the free mods, now i want to do my cam and valvetrain swap..... what do you guys recommend if i have a built tranny with a 4k stalll with a 2.5 str, i always hear match your cam with your stall thats what i dont get! stock heads and stock bottom end!

 

You can do a pretty big cam with a 4000 stall, but sometimes you have to change your rearend gears as well. You would have been better off to talk to Thunder Racing or one of the other sponsors before you got your stall. I am sure they can still help you pick a cam to fit your wants/needs whether it is one of theirs or a custom grind.