Searching parts and found this good link on V8 motors. http://www.avto-ultra.com/en/go/V8/tech.glossary.details.html The person who wrote that, if I understand correctly, explain that motors with heavy counterweights on the crankshaft will prevent the car from accelerating rapidely (as we have some large onto it)... Maybe it's why the V8 SHO is similar in performance as the V6. (?) At least, our motor isn't completely forgotten or reminded for his cams problem... "V8 are common in purpose-designed engines for racing cars. They usually have flat-plane crankshafts, since a crossplane crankshaft results in uneven firing into the exhaust manifolds which interferes with engine tuning, and the heavy crankshaft counterweights prevent the engine from accelerating rapidly."