compression with 274cam

IMHO,if you must have a bigger cam for your combo go with the comp xe275hl or the lunati voodoo series 60404 for off the shelf grinds,I would consider these the best match for a hot street setup.Its all about the rpm range and cubic inches,they go hand in hand.I have ran a few of the comp xes and I had the xe284 in a couple engines but they were 400 and larger cubes and the cam was still pretty radical for the street.Im also a guy who considers 8 in. or better vaccum fine for power accesories on the street,but its all about the whole package and you cant have it all,there is a trade off and you will be giving up a ton of torque/driveability for a single peak horsepower number.If you really want to build a single purpose engine then port the heads,run 11to1 or better compression,big tube headers with 4.10 or lower rear gears and then you can utilize the xe284 to its full potential in a 360,or go bigger cubes to get the power in a usable range-either way big money when compared to a basic hot street 360.I say this not to discourage you but hopefully to avoid the pitfalls alot of us have encountered-everything I do is on a budget so I have to make each dollar count!.