My 82 has sat for about 8 years. I recently disassembled my 4160, thoroughly cleaned it, and replaced all of the gaskets. It runs well except for when you feather the throttle it hesitates and then clears up. This is what I'm running:
Stock block and heads. No idea about the internals but nothing high performance.
65 primary jets
6.5 power valve
31 accelerator pump nozzle
orange pump cam
idle mix screws out 1 1/2 turns
car has 20" of vacuum at idle
14 initial timing and about 30 at full advance
Where should I start tuning?
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