when I sealed up my carb to my 1970 Road Runner type hood , I had to retune my carb, also AFR is more consistent, the car runs much better with it sealed up,my car has ac & in southeast Tx, so under hood temps are very high, it really runs like a different car, for the better.
Last edited by csk; 08/03/1702:32 PM.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
, I had to retune my carb, also AFR is more consistent, the car runs much better with it sealed up,my car has ac & in southeast Tx, so under hood temps are very high, it really runs like a different car, for the better. 
