John Tipps
Active Member
As stated on a previous thread I changed the heads (Trick Flo) and cam (comp262) and cant get it to run right, the timing marks were set on 12 and 12 (amid some controversy) and it runs but no noticeable improvement in power unless you seriously put your foot in it, tried moving the timing around but anything below 20 and it gets ugly,above that and rpms are up but still shaky also talked to mopar guy and he suggested rpm at 2000 pull and plug dist and set timing at 30 or so and it seemed to help a bit but still sluggish, then did a vacuum test on edelbrock carb front port and no matter which way the adjusters were turned it wouldn't get away from 12lbs,hooked it to manifold behind carb and it barely got off of 10lbs, did a compression check and all were around 150lbs and the #7 was brown but not wet w oil, I also pulled the covers off and reset the lash on the hydraulic lifters and put 3/4 turn this time instead of a full one-can anyone help with this-why for one will the vacuum not change would this an indication of the problem? Im trying all I can before removing the front of motor and restting timing dots