25 Now it was time for the moment of truth. Jason unplugged the HEI and cranked the engine over until fuel reached the carb with a starter button. Once we had fuel he hooked the HEI back up and lit the engine off. With timing light in hand Jason set the timing really quick and then brought the motor up to 3,000 rpm to break in the cam. While that was happening we looked for leaks and kept an eye on the temp. Everything checked out so that pretty much finishes the job. The car now sounds like it should, has way more power and floats right along when the trans clicks into overdrive. Now check out the massive parts breakdown side bar so you can be more prepared than we were when you start your own V-8 swap.