got my heads flow benched after some porting on the exhuast ports...these have 1.94 intake and 1.60 exhaust valves...

before porting:
I/E
.100 62.3/53.1
.200 124.5/105.9
.300 178.2/126.4
.400 218.3/132.7
.500 225.7/136
.600 221.3/137.5


after porting (exhaust only)

.100 54
.200 105
.300 137
.400 158
.500 167

just in case any one is curious...

 

Cool! Thanks for posting them.

 

That is very close to what i got from the out of the box vortec's. (228 -145cfm @28

I ported the intakes with 2.02's to the tune of 245+ cfm @.500" without removing much metal.

Velocity was very high kept sucking in the radius putty while testing on the bench.

2.02's and 1.60's with moderate porting really soups these head up.

 

how much did that port job cost you?

 

~ $9, first time too, wasn't that hard, lots of info out there and pictures are always good

 

And some pics from you would be a good thing.

 

im all up for some pics aswell, im starting to work on my Pro TopLine 906 castings

wow i cant wait to get my "little" engine in there

 

I dont have a digi, but I followed the info on the car craft page(pics too):

http://www.carcraft.com/techarticles...rt/index1.html

their #'s went up a lot, but he tested it with a tube though...