SBM Rocker Arm Comparison

There should be no clearance issues with the PRW rocker on a TF head as long as spring diameter is under 1.55” or so. The rocker shaft on the TF head has been relocated and is farther away from the valves than factory iron heads or the Edelbrock style heads. In my opinion the PRW rocker is a little too short for the TF heads as shown in the pictures of post #1, but may work fine.

Give Mike a call or email. He can talk you through the options. Correction kit may not even be needed. TF head is better OOTB than most others.