p0300 giving some problems, need some help!
. Here's the symptoms and list of new parts.Car runs decent at part throttle, but under load it pops and misfires. Although it still hauls a$$(beat my friends low 13sec stock LS1) its got ignition issues that don't seem to go away. For a period of 15-20min the car ran without a hiccup but all the problems came back right after. SO what do you guys think, should he burn it yet...LOL?
New parts:
AC Delco opti
NGK TR55 plugs
Autozone replacement wires
Autozone coil
ICM checked out to be in good working order
Fuel filter(old one was clogged)
Opti harness looks good
Mods:
Hotcam kit
LT's w/ bullet dumped
K&N CAI
TB air foil
3.73's
stock converter



