Flowcharts on various 302 heads and valve clearance questions

[KlubFoot]

Could someone help me find the flowcharts for a few different heads... Trick Flow Twisted Wedge, Edelbrock Performer RPM's, AFR 165's and 185's.

 

Also, if I read correctly, you can still use the stock pistons with the Trick Flow Twisted Wedge 2.02 valves with up to a 224 @ .050" duration and .540 lift... is that correct? And if so, what would realllly be pushin it? Whats safe, and what's not? Thanks

[Guest chochmo]

yup I believe those are the correct numbers but double check. The Twisted Wedge heads are very nice my friend has a set on his street car with stock pistons. You have to get custom length hardened pushrods remember and you also need to make sure those clearance numbers match the rockers you get (1.6s or 1.7s)