yeah.. 330rwhp with stock heads/cam and a blower is do-able..

for this application I see the blower being the best choice..

Although a h/c/i 302/306 can be a very fast ride.. its all about the setup.

AFR185's, Custom Grind cam, Eddy performer RPM 2 and a 6500 shift point on a 306 is a wetdream nd well over 300rwhp