Reply to "Single plane or dual plane?"

push1267Member

Guys - Thanks for your input. That's really useful.

I'm not looking for all out max power and 7000 rpms, I still wan't it to be streetable. With the current cam, although it's a bit rough, it's actually very streetable and idles nicely in the 1000-1200 rpm range.

It seems from your comments that a single plane, or the price 2x4 set-up (which indeed seems like a nice set-up - and expensive) wouldn't hurt the low-end too much, but move the power-band up and increase top-end while still maintaning reasonable good street manners.

A ported victor jr with a QF 830 may be the way to go then, as the super victor is too tall to fit under the screen.

Regarding the heads, it's possible that they are limiting for a 427?. These are the flow numbers for the heads: Cam lift is about .600 in/ex.

Flow in CFM
.050 in 26.5 ex 24.0
.100 in 60.0 ex 52.0
.200 in 116.0 ex102.0
.300 in 168.0 ex134.0
.400 in 217.0 ex172.0
.500 in 260.0 ex181.0
.600 in 292.0 ex190.0
.700 in 305.0 ex200.0

11/16/1210:03 AM

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