Intro to a port job

Garrett Ellison said
That’s an interesting bowl shape, to say the least. It appears to make swirl/tumble in the cylinder by manipulating mixture velocity around the circumference of the valve. Just curious as to how much material is in the bowl to port before running into water in those and if you ever band sawed or sonic checked to see. Very curious as to what it flows like that, too, it looks like it may be better than expected.

**1.88 tulip 'as cast' intake flow is**
Cfm@28" temp66/73% humidity 500ft
.100 52.7
.200 115
.300 166.4
.400 194.6
.500 187.2

**1.88 tulip initial port work shown w/short turn work on straight wall hump
Cfm@28"
.100 67
200 128.5
.300 186
.400 215
.500 243
Starts to saturate at the typical .530-.550 with it peaking @246
I could work on fixing that.. but these are getting 2.02 valves and I'll save it for another day. I just wanted to have a little fun with the 1.88 stock 3/8 stem valve..not bad for just port work and no seat job, compare to average 2.02 numbers. A 1.94 would make little work to have a nice 255cfm head... but the way the short turns are cast...you have 2 options imo...1 is to lay it back really far to get the even parting line, the other is to just put a bigger valve in it and you only have to lay it back so far with the other work that's already been done. I'm just small talking over a beer now.. anyways ..it's always interesting and fun. I need to do a vid or 2, or live feed er something.