Actually a Cleveland 4V has a horrible massive combustion chamber and big lazy ports. I've built a few and at pump gas compression ratios and with civil, driveable camshafts they don't even make 1hp/ci--like 340ish hp with lackluster torque 370ish. An absolutely comparably built 340 usually winds up at 380-390hp ish/390-400 tq ish--lol and with fewer cubes. You're not wrong--the flow of the Cleveland can support very high levels of power just like the vaunted HEMI--but inactual reality the big stupid ports and not enough cubes makes them sluggish and unresponsive on the street. I would love to see a shootout where OEM cast iron heads are used (porting allowed--make them Clevelands bigger-lol) and the cams are spec'd the same and compression is set at 10-1. Base the score on average HP/Tq ALA Enginemaster comp. $100 bucks the Cleveland doesn't even podium. J.Rob