i know,thats why i asked kyle,he is so smart,lol.

14 PSI BOOST makes any head flow good guys and gals.

Quote: Originally Posted by pigsy qld so 211 @500 with 156 ex is as good as it gets or does some 1 have better .the bro just got a new 600cfm superflow? flow bench experiments starting now 162cfm at 28" is the best i've heard from a SOHC Some original photos have not been recovered yet.

ok 1 guy l no recons he get like 225 at 78% @500 @28"with 1mm over size dont no how true it is

ok up date my head was flowed the first 1 was only flowed @25so it flows 198 @28 @500 wich still has 0nly 74% started on the new ports let you's no by the end of the week

198@28" is pretty damn good for your sh1t head cant wait to see the figures out of your good head!! should b a good race between me n u might hav to get your bro to play wit my 2J head Some original photos have not been recovered yet.

the trick is to get high CFM with out hogging out the port size (inlet)

my bro's porting the second head he recon's at least 220 plus wait and see l supose he done a red 308 head wen l was there the other day and got 498@25 at 500 lift,which is around 512 @500 lift@28 so l recon he will do it and more

512 CFM my as5 he is a liar or his flow bench is faulty or he is quoting you calulated HP not CFM

Quote: Originally Posted by NZ VLCT the trick is to get high CFM with out hogging out the port size (inlet) agree

Quote: Originally Posted by NZ VLCT 512 CFM my as5 he is a liar or his flow bench is faulty or he is quoting you calulated HP not CFM it flows 512 hp not cfm Quote: Originally Posted by cmy747 agree and a bit of z-spar Quote: Originally Posted by NZ VLCT 512 CFM my as5 he is a liar or his flow bench is faulty or he is quoting you calulated HP not CFM and wats the best cfm u have heard or hp for that matter

Quote: Originally Posted by NZ VLCT 512 CFM my as5 he is a liar or his flow bench is faulty or he is quoting you calulated HP not CFM L SPOKE TO THE BRO TODAY IT IS 227 CFM@500 LIFT @25

that sounds better (sorry if i came across like a tool btw) :S Some original photos have not been recovered yet.

big block head flow around 450 cfm so l see were u was coming from

just found out the flow figures of a dead std 2J head and 1J head yes i know its not a SOHC std 2J as follows 238@400lift intake 154@400lift exhaust std 1J 215@400 intake 133@400 exhaust even after the guy ported the 1J head, it still didnt match the std 2j head figures where 230 and 152@400 all tests where done on the same bench i guess that puts the rumour to rest that the 1j head is better than the 2J

boys im going to get some head work soon and this post has been very informative! thanks guys some quick Q's figures like 225 at 78% @500 @28"with 1mm over size can someone elxplain what all that means? i assume 1mm oversize refers to the valve, but 500 lift and 28"?? ive got no idea!

Quote: Originally Posted by VL_BT1 boys im going to get some head work soon and this post has been very informative! thanks guys some quick Q's figures like 225 at 78% @500 @28"with 1mm over size can someone elxplain what all that means? i assume 1mm oversize refers to the valve, but 500 lift and 28"?? ive got no idea! 225 CFM (cubic feet per minute- airflow) at 28 inches of water (thats a vacuum unit) 28" is now the most used std for flow testing heads. .500 is 1/2 an inch, its the valve height off the seat that got the highest flow reading the percentage is usually the exhaust flow compared with the intake flow and yes 1mm is the valve head oversize

ok thanks NZVLCT

first go so far 204@500@28 gona have another go in afew days

had a look at this head 2night on the flowbench theres still alot of work thats going to be done and its already flowing 204cfm!! its unreal!! pretty certain now that im goin to get your bro to play wit my 2J head!! also, flowbenchs are an awesome bit of gear!!