The Z303 cam 228DEG@.050 with .552 intake and exhaust lift.
Ford Racing Performance Parts [M-6250-Z303*]
Stage 1 Trick flow is 221/224@.050, .499 .510 ,with a 112 deg L/S
STAGE 2 Trick flow is 224/232@.050 .542 .563lift, 112 deg L/S
So the 1.7 rockers will make more lift and may be too much....only way to know is to check the piston to valve clearance with the cam in.
Your intake should be o.k. I didn't see that you had a RPM. It IS at it's limit with a 351 over 5k rpm.....Another intake may help but since you have this I would try it. It will be too small when you go a stroker though.
Ford Racing Performance Parts [M-6250-Z303*]
Stage 1 Trick flow is 221/224@.050, .499 .510 ,with a 112 deg L/S
STAGE 2 Trick flow is 224/232@.050 .542 .563lift, 112 deg L/S
So the 1.7 rockers will make more lift and may be too much....only way to know is to check the piston to valve clearance with the cam in.
Your intake should be o.k. I didn't see that you had a RPM. It IS at it's limit with a 351 over 5k rpm.....Another intake may help but since you have this I would try it. It will be too small when you go a stroker though.