It was the smaller one for 1.5 rockers. Rhs heads 220 runners. First night in. Started 8th in heat finished 6th. Won consi. Finished 14th in main. Mostly against crates. Seemed I was out of rpm entering the corner. Hitting chip. Im gonna change gear for some increased entry speed. So far I think its ok. But definitely was a off night.
The 220 heads on say a 350 you would need to turn 7500 rpm or so and the mid range wouldn't matter a whole lot. But on a 400+ cube engine it would work ok. That's just a general observation.
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