I wouldn't say Probe's are very, very good or extremely expensive. I'd say they're a good mid range piston. I was quoted around $450 for a set of -22cc Probes for my setup. The Ross -32cc blower pistons I ended up with cost $1100 shipped with rings.
I'm not saying there's anything wrong with Probe pistons, they were actually the first company I looked at. They didn't make the pistons I was looking for so I found another company that did.
titanium is less weight than steel
a light valve train is mo betta than a heavy one :Word:
light vt won't loose control as easily as a heavy one
light vt won't work the springs as hard as a heavy one
light vt will rev higher than a heavy one
etc
Grady
If you have the heads milled down to 58-60cc's your compression will be pretty close to what your wanting if the info on the stock pistons are correct. IIRC I have read that it isn't any problem to mill these heads down to that size.
Trickflow pistons have a completely different valve notch in the piston than stock heads so if a notch is needed the trickflow heads will need to be used.
I would let your cam grinder know about the head change and see what he says about valve clearance. He should be able to let you know if he thinks there will be any problems. although the only way to know for sure us to check but I know you already know that.
If you AFR's had 72cc chambers you will probably see a pretty good increase in power.
Trickflow pistons have a completely different valve notch in the piston than stock heads so if a notch is needed the trickflow heads will need to be used.
I would let your cam grinder know about the head change and see what he says about valve clearance. He should be able to let you know if he thinks there will be any problems. although the only way to know for sure us to check but I know you already know that.
If you AFR's had 72cc chambers you will probably see a pretty good increase in power.
will milling the heads cause any additional PVC issues other then what I would have w/ out milling them? I did contact Ed Curtis about the head change and using the same cam. He said there should be no issues as long as I get the proper valve spring kit. I did not specifically ask about PVC but I can write back to him