Ok. Dirt car question. Friend of mine bought a concept motor for her circle burner and we can only get 4900 rpm out of it, acts like you are bumping the chip but we have bypassed the limiter and same thing. To save time I will tell you what we have done so far. My thought is its an electrical issue. Maybe.
Checked wiring, battery, ground.
Limiter set at 6200, bypassed it.
Checked timing and advance. Ok
Changed distributor anyway. Same thing.
Checked and adjusted floats. Even changed carbs.
Checked valves, springs, rockers and studs.
Maybe intake or carb spacer leak? Running out of things to check.
Help
Checked wiring, battery, ground.
Limiter set at 6200, bypassed it.
Checked timing and advance. Ok
Changed distributor anyway. Same thing.
Checked and adjusted floats. Even changed carbs.
Checked valves, springs, rockers and studs.
Maybe intake or carb spacer leak? Running out of things to check.
Help