I've had a CJ-7 with the 258 and put a 360 in it, WOW. With a 2 barrell carb it would go! The CJ-7 I have now had a strong 304 in it. I put a '74 401 in it. Had the block bored .30 over, new piston's, bearings, 2 new valves, both heads cleaned up. Edelbrock performer carb, intake, cam and...