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  1. GN7 On the Dyno
    im interested in increasing combustion efficency by incressing the pistons "dwell" time at tdc if im thinking correctly if we "hold" the piston at tdc "longer" the combustion pressures are going to go up and there will be a more complete "burn" increasing efficiency, and if im right then having...
  2. GN7 On the Dyno
    Truck is running crappy - need to check the dwell. I do not currently have a book and want to do this as soon as i get home . truck is a 70 chevy with a 250 cid 2wd Thanks appreciate it
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