Porting the heads
 

Has anyone developed set of cams that will add performance to an engine with ported heads. Although the heads are pretty good, there is plenty of flow to be gained. This is supported by the intake and the exhaust. It seems the valve opening is the limiting factor.

Also, if I install the 1 am larger valves, can I recut the valve seats and throats or will I need to add larger seat stock
Thanks

https://www.counterspacegarage.com/piper-cams-stg2-fa20

https://www.counterspacegarage.com/piper-cams-stg3-fa20

You can +1 both sides of the valves, but how you decide to make them fit is dependent on who's doing the headwork for you. Go with their experience.

I have spoken to a few that have run the piper cams. and 1 user actually switched back and put the pipers up for sale. I may be wrong but it seems someone mentioned the pipers allow more rpm but not really more hp. I wish I could see some dyno sheets to see the differences.

Also, do you sell the +1 valves. If so, can you pm me a quote.
But I wanted to verify if the block had been line bored or not. Crank is dead on the standard size.
Thanks

I have spoken to a few that have run the piper cams. and 1 user actually switched back and put the pipers up for sale. I may be wrong but it seems someone mentioned the pipers allow more rpm but not really more hp. I wish I could see some dyno sheets to see the differences.

Also, do you sell the +1 valves. If so, can you pm me a quote.
But I wanted to verify if the block had been line bored or not. Crank is dead on the standard size.
Thanks