I have a set of heads off of a 327 250 horse engine, they are not the double hump heads. Right now I am planning my engine rebuild for my k-5, right now it is a stock never rebuilt engine. What I am going for is reliability, good torque through-out the RPM range and trying to do it the cheapest way. What I was wondering is if I decide not the do the bottom end would a set of 327 with a smaller chamber, and I am assuming low beck height work? I believe the 327 was a 10.5:1 ratio. Also I was wanting to make it full roller valvetrain with a performer air gap intake, maybe keeping the stock q-jet as it works great, but maybe upgrading to a 650 holley. Any suggestions?