Tillotson 207 head

[Raging Bull Engines]

i have yet to see or flow a 207 head. Anyone out there have any info on them?

 

[Mark @ EC]

Flow testing by Young Engines. TIllotson vs JT-158

Tillotson JT207

.050" - 15.9

.100" - 30

.150" - 43.5

.200" - 46

.250" - 47

.300" - 48.5

.350" - 50.5

JT-158

.050" - 15.9

.100" - 30

.150" - 42.6

.200" - 44.1

.250" - 46

.300" - 48

.350" - 48.5

Both heads are stock using the same valve on the same flow bench.

 

[RCJ]

When flowing heads do you use a radius block or any on the intake port