the summit 6401 is 280@.006", 224@.050", 134@.200" on the intake lobe. 290@.006", 234@.050", 144@.200" on the exhaust, 114lsa with 2 degrees of advance ground into it. smooth idle, very good low end and probably 4800-5000rpm max on a stock 440. the high advertised seat timing numbers include the ramps. i believe the elgin e-988p, and clevite 229-2034 are 112lsa/5 degrees advance versions of the same lobes. i think one of the latter two may be my next driver cam; if i can find one.

the old hughs/engle 2330 is a engle k56 intake lobe and k58 exhaust lobe. the intake is 274@.006", 224@.050", 138@.200", .507 lift at the valve with 1.5 rocker. exhaust is 283@.006", 230@.050", 146@.200", .515 lift at the valve with a 1.5 rocker. this would be a good exhaust manifold cam ground somewhere between 112-114lsa.