Small Block Head Flow Chart

Numbers from when LaRoy ported my Eddy Performers.
Air flows advertised by Edelbrock…………..As received………..After porting

.100………………….69/64………………………………………………62/53………………..69/56

.200………………..129/108…………………………………………..126/108…………..140/123

.300………………..188/142…………………………………………..174/140…………..199/178

.400………………..232/171…………………………………………..221/158…………..241/225

.500………………..249/183…………………………………………..245/163…………..270/232

.600………………..251/190…………………………………………..248/166……………280/240