Thanks Tom,
I have a Esslinger head with the 32/29 combo, special stage 3 duration with stage 2 lift, stage 2 exhaust that puts out 185 hp at the wheels. It is time to do a valve job and spring replacement. If I can gain HP or TQ buy going to 33/30, it might be worth it. My application is autox.
Your thoughts are appreciated.
thanks,
Wayne