the heads wont be able to flow what they should. to really use a big cam you need ported heads to flow what the cam wants.

youd probably get more out of your if you stayed with your heads/cam setup as is and adding the rest of the setup than if you were to just run a big cam on stock heads.

if you want to work out on a payment plan on those heads ill work with ya. i figure youre a pretty faithful kind of guy.