4x4brat Posted August 28, 2008 Share Posted August 28, 2008 Well after 2 years gathering all the parts to rebuild another BRAT 4" Lift on a 1978 Brat...ca smog:dead: timing IS set to 8 degrees....but seems to BoUnCe (tried 4,6,10,12) rebuilt ea-71 "All" new exhaust, cat.... with New "POINTS",cap and rotor (points set at .018 gap) rebuilt hitachi carb, new wires, plugs in the driveway: it Idles "FINE" but it backfires thru carb when throttle is hit (under 2500 rpm)seems to rev high ok when driving: Throttle needs to be feathered to help built High rpm's but still has no power Any Ideas? Starting Places? Thanks:burnout: Quote Link to comment Share on other sites More sharing options...
McDave Posted August 28, 2008 Share Posted August 28, 2008 How old is the gas? I've seen 2 year old gas act like what you're describing. Quote Link to comment Share on other sites More sharing options...
hatchsub Posted August 28, 2008 Share Posted August 28, 2008 Vacuum advance working? That could cause similar symtoms. Quote Link to comment Share on other sites More sharing options...
4x4brat Posted August 28, 2008 Author Share Posted August 28, 2008 New gas.. I'll be checking vacuum today Thanks Quote Link to comment Share on other sites More sharing options...
cawain Posted August 28, 2008 Share Posted August 28, 2008 New gas.. I'll be checking vacuum today Thanks I had a 78 sta wag and the only way I could get it to run properly was to set the points with a dwell meter. When I used the dwell it ran great. Quote Link to comment Share on other sites More sharing options...
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