.
I know 400 is very attainable from a 383 of this build- do you guys think a mopar cam is the way to go?
NOOOOO
Is this cam degreed? If not do that first.
If it is degree what are the specs on the duration at .050 and LSA and intake lobe center?
I'm still thinking you have a lean pop at light part throttle application, driving
Or maybe a vacuum leak
the cam is degreed, cam card said 112 or 113. it was at 114, i tried 112 and now 108 and no change.
The carb is a 870 vacuum secondaries, i have tried 2 distributors,... checked for vacuum leaks at the carb, and intake with spray. saw no change.
adjusted valves multiple times. No change, it pops and backfires through the carb. Timing has been adjust from 5 ATDC Through- 20 BTDC
Thoughts?
