New motor won't run right

[Squareforceone]

Hey I don't really know how to explain it but i went from a 305 to a mild 350 (bought used with unknown cam I think it's a luntai bracket master II) The truck just doesn't seem to make the power it should it will roast the tires around corners and from a stop but it seems like at a certain point it won't accelerate right I mean it'll go faster but it like hesitates. I don't know how to explain it it makes a sound like wapwapwapwap and doesn't really accelerate like it should. I have the timing set at 35 degress total timing right now. It's weird sometimes with accelerates better than others I just can't figure it out.