Installed a stage 3 camshaft from kelford on my 80!
Camshaft link: 284/284 | Stage 3 1FZ-FE - https://kelfordcams.com/product/toyota-1fz-fe-stage-3-high-performance-camshafts
Lots of chop at 850 RPM, mid range is much beefier, powerband feels peakier.
Sounds great, almost has a Harley idle!