delco equipped head flow bench

[vlad01]

what was photobucket doing for you?

as of late them seemed to have redirect popup on their site, and their site only.

[delcowizzid]

more accesserizing got me some software its pretty damn cool gear can sim your port flow against cam specs work out port speeds etc and make pretty graphs.inputted figures are just me messing round for a play time to get some real figures

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[HQ355]

That is pretty cool ! You'll have everyone asking you to choose a cam for them soon lol

[delcowizzid]

thought ide hit a china digital manometer for a laugh youtube reveiews seemed ok any more gauges ill be able to fly it LOL http://cgi.ebay.com.au/ws/eBayISAPI.dll ... 1493757386

[delcowizzid]

heres where im at on my test bowl might go get a valve back cut tomorrow maybe even get some seat angles cut in there to test.surprised at the power output for such rough cast and unmachined ports
stock

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ported

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[Holden202T]

so whats the difference between the standard valve stem and the machined down one ?

[delcowizzid]

Grinding that guide boss out definitely helped get flow round one side of the valve up but it needs more taken off the leading edge it's working like a ramp and making flow leave the port roof abruptly

[The1]

you could grab one of those $30 smoke machines on ebay to put feed into your pipe perhaps.

[delcowizzid]

I built one soldering iron large outdoor oil candle wick and baby oil in a paint tin with a ratchet lid

[Holden202T]

the other thing I've done around the guide boss is grind in either side of the area closest to the spark plug (the right hand side) to try and help it get right around nicely and also taken more off to almost make it a knife edge ...