I just measured PTV on the intake side, first time doing it. In the past Ive just degreed the cam and called it good. Looking at the minimum PTV my numbers seem kind of high, but maybe not. Can someone tell me if these look normal or not?

Engine details:
346
-3 dished pistons
LS9 head gaskets
243 heads milled .010
230/237 .600/.610 114+5 cam

PTV numbers:

15* BTDC = .458
10* BTDC = .409
5* BTDC = .361
TDC = .325
5* ATDC = .302
10* ATDC = .296
15* ATDC = .302


I used an adjustable pushrod, light checking spring, set stock rocker to zero lash, solid lifter.

 

Here are my PTV numbers for the exhaust side:

15* BTDC = .416
10* BTDC = .367
5* BTDC = .340
TDC = .322
5* ATDC = .330
10* ATDC = .350
15* ATDC = .388

 

Also these Diamond pistons have valve reliefs cut into them instead of a standard dish so that's giving me a lot of clearance I think.

 

Bump.