[Michael C Henry]

Now a question .On a dual four setup 600cfm 1860 holleys.They came to me with light blue accelerater pump cams and 30 cc pumps.They stroked out real quickily in the first part of the throttle movement leaving nowhere to go in the rest of the throttle travel.The 50 cc pumps have a slightly smaller disk in it's diaphram (to make room for the pleats) than the 30 cc diaphram . The 50 cc pump kit came with a brown cam #664 it appears to be identical profile to #336 but with a wider ramp for the lever to rub on.It is a gradual lift untill full throttle.so any farther application would have a squirt.It appears to be identical to the Light blue cam and 30 cc pump but it keeps squirting untill full throttle.I haven't changed squirters. Any experience out there?