Hey guys,got a new project and having a few problems getting my bigport 4age to run properly in my ae86. MAP sensor'd
cars undrivable at the moment, if i give the throttle a real quick hit and bring it up to say 2500rpm it misses and backfires and carrys on, if i move the throttle slowly to 2500 not a problem at all
idles like crap (see vid)
What ive tried;
Have statically timed (everything lines up, cam timing etc)
timing is at 10BTDC with diagnose bridged (timing is pretty erratic, 10degrees for 2-3 seconds then jumps to 15 then back to 10 etc etc..)
compression check 140-145 on all 4 cylinders
checked vac hoses
TPS adjusted and in range
Cleaned iscv/throttle body new gaskets everywhere
new dizzy cap
new plugs
new leads
all sparkplugs are sparking
Any ideas?