any ideas on this?
the car should go bu-bu-bu-bu-bu
but istead it goes bluh-bluh-bluh-bluh
it lopes like an over-cammed V8, but only sometimes.
ive done: head cleaned and machined, new head gask, new valve cov gask, new intake mani gask, new vac lines, air filter, spark plugs, wires, dist cap, rotor, new fuel pump, fuel filter, gas tank (unrelated incident nevermind...), let's see....... thats about it. it only does it some times, cold or hot. worn cam maybe? timing belt is 3 yrs old. #4 cyl it a bit oily. compression test fairly even and within specs (~170 psi if i remember correctly) any suggestions? thanks!

thank you to aye roll for help with fuel line prob. the fuel line is a tube within a tube and when i tightened the line the inner tube twisted and cut off fuel flow but the outer tube looked fine. oops. anyway, you were dead on!
cheers!
sasha