Originally Posted by bygddy
At my power level is there a noticeable power difference from 3" to 3.5" ....local guy here has one for sale as well for 175$ but I didn't think it was worth it for minimal if any gains.
The biggest issue is the Y pipe.
You can improve that a lot by custom fabrication.
2.5" to 3" merge Y collector
The cam is fine. Might want to move it to a true "straight up" position
for best results with the shorty headers and single pipe exhaust.
A 1/4mile run MPH will tell you how much power it is makeing
what ever it is you can work it.