I have a 1st gen 350 in my 67 camaro. Im trying to suprise my sister with the car for her wedding. I am putting a cam in the car before she gets it (along with some other work). anyone know how big i can go without causing damage? Performance is not my number one priority on this motor, (I have another motor being built for that) but i really need this thing to thump and sound its best. Any one have any Ideas?