I ultimately bought close to to swapping The top using a new just one with tomei poncams as they work with stock ecu great. also installed ARP head studs and flywheel bolts, upgraded flywheel to MRP lightened and an even better Exedy clutch. Valuable employees, questioned all my questions and https://jdm-toyota-4a-ge76320.bloginder.com/33888607/a-review-of-toyota-4age