need help

[1bad84gn]

just got car back together idles & runs fine in park but when you drive it there's a miss & back fires. Any ideas? thanks jim

 

[boosted84]

When you say you just got the engine back together what mods were done if any let us know every thing to help you better good luck

Anthony

 

[1bad84gn]

motor is stock has 30lb. inj.,adj fuel reg. & a 255 fuel pump. The fuel pressure is set at 40 tps is set at .41 thanks jim