Quote:

any spec info on nonported and ported ?
thanks don



Flow numbers from a late revision
casting in factory form.
2.02 x 1.60
...........IN...................................EX

.100"....54.6...............................56.6
.200"...100.8..............................101.0
.300"...150.5..............................144.3
.400"...202.1..............................159.2
.500"...243.2..............................168.1
.550"...257.5..............................169.9
.600"...263.0..............................171.1

Ported with 2.08 x 1.60
...........IN..................................EX

.100.....64.9..............................56.1
.200....124.6.............................118.8
.300....189.4.............................174.6
.400....245.6.............................203.6
.500....286.7.............................224.4
.550....301.6.............................229.4
.600....304.0.............................232.4
.650....298.0.............................237.3
.700....290.4.............................240.7