Originally Posted by fast68plymouth
What was the A/F ratio on the dyno(it’s not on the sheet) vs in car?

A comparison......
Your sheet -
6000rpm - 633.2hp - 317.5lbs/hr - bsfc .501 - 889cfm

A sheet I have here -
6000rpm - 634.9hp - 278.0lbs/hr - bsfc .438 - 801cfm

Granted, the crappier weather there would have this motor making less uncorrected hp at the same rpm....... but then the fuel and air flow would also be lower.

I’m just saying....... from what I see...... there should be some ET left in the tuning.

Looks like it should be running a converter in the 5000 range.

Its a 8" converter that was built from the dyno sheet LOL!!! it is WAY to tight, imagine that,,,,, on the data log 4000 rpm flash, we put a converter in it that would flash 5200 that came out of his steet car, we will see.

Last edited by csk; 01/05/20 03:10 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