I disabled the EGR on my old stock 180 HP 78 motor when I swapped on a 72 HO intake no pinging. The 400 in the 81 has a plain performer(although I have an EGR one if we ever get that much govt inspections!) and no pinging.
__________________
Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
|