I have a 91 da with ls vtec and it seems its lacking power from the start then picks up and when im hitting close to 8 grand it does it again idk if its fuel or ignition so if anyone has any idea let me know thanks

 

if your using stock ecu, get it tuned. Most of the time it won't run smooth until you tune it A/F ratio is off

 

deff. sounds like you got a couple holes in ur fuel map