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HybridZ

ordered my AFR195's heads


z ya

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I'd appreciate it if you had those AFR's flowed by a respected local shop when you have a chance. AFR has a bit of a history of inflated advertising numbers. I flowed a set and my rpm's flowed very similarly (had both sets flowed a while back)although published numbers wouldn't have supported the local test results (above .500 lift the AFR's were climbing ahead, but I'm not running a lot above .500). They have various offerings but their were some basic design details including comb. chamber geometry/plug location/angle that were frowned upon by some respected builders. Some LT1 guys have disproven some of the AFR claims as well. Apparently they've changed some details in last couple years but I know the magazine results etc weren't quite right

icon_rolleyes.gif a year or two ago when I looked at them. For higher power building beyond 400hp I'd personally look at brodies/canfields and then AFR's. Others will support the same levels but will need a little more cleanup.

 

Just my .02c and I wish I could recall more detailed info from the discussions on the AFR design specs, (on blown motors they haven't been lasting up here, I do recall that).

 

If I come across my old comparison graph I'll post it up. (FWIW, edelbrock OEM rpm valvesprings are known to be weak and fatique rather early....mine tested out as dead after a year's use including some high revs icon_rolleyes.gif but noone testing was surprised as they've seen them regularly, I put in all comp cams parts for replacement)

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My dad's 280 is pretty fast with its fast burn 385 sbc and tpi 700r4. Its gonna be fun.

We just got done putting in the new comp cam

and removed the old heads. The cam is rated

at 286 duration and 490 lift. I am running

some roller tip summit 1.5 rockers. I am

hoping for around 420 to 430 hp without NOS.

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I will for sure keep you guys posted. What

do you guys think of my motor combo?

 

350 sbc

10 to 1 comp

AFR 195 heads

RPM air gap intake

750 holley

1.5 roller tips

pro form hei

1 5/8 shortie headers

2.5 delta flows

286/490 comp magnum cam

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A good choice! I'd hope the "independent" test done by CHP was legit. Flow all the competitve models on the same bench, at the same facility. The 190s outflowed everyone in the 190 class, especially in the lower lift range, not to mention outflowing many of the bigger heads as well. When I get my 383 project rolling, it will have the 195s. Keep us posted on the results.

JS

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