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Aussiespeed manifolds holley 4 barrels

does anyone know if the Aussiespeed manifolds are a very good flowing manifold?
I have a Holley 570 street avenger on top of it.
it's a heavily modifyed blue 202 but it only makes 98 HP what am I doing wrong?

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To need 570 cfm on a 202, you'd need to be revving to 9000 rpm! Depending on how "heavily modified" your 202 is, the biggest carbie you'd need would be 390 cfm (6200 rpm) or 465 cfm (7500 rpm). With carbies, along with cam, valve and port sizes, bigger isn't always better - too big and you'll lose your flow. No flow means no horsepower. All your components need to be compatible, or it won't work. You could make good use of the 570 if you bought a blower manifold and 4/71 blower to put under it, or a V8, but it won't work on a naturally aspirated 202. To put it in perspective, a 570 is the perfect carb for a 308 that does 6000 rpm. You need something smaller.

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^^^^ What he said^^^^ Waaaay too big a carb for a 202...

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Cheers...Dave

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What cam, head, compression ratio, exhaust, ignition, running gear, and gear ratios are you using - maybe the oversized carb isn't all your doing wrong?

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