1986 camaro WAS fast but not anymore
i have a 1986 camaro Z28. it has a 350 from an '87 camaro IROC-Z but the throttle bodies were swapped for a holly 650 cfm carb. it also has hooker headers and mufflers running through 3" pipe, an edelbrock manifold and an after market cam.. yesterday out of no where i was going home when it just lost all power..
from about 1500 RPM on up its real doggy but it has short periods where it just takes off for about 500 RPM but then is a real dog again.
i can floor it and its about as fast as my 1991 buick lesabre. so far i have replaced the fuel filter and acceleration pump.. i have also checked the plug wires and one of the eight plugs (the headers make it impossible to change plugs) but the wires and plugs only have about 5k miles on them and looked brand new. i also checked the timing and distributor. its all okay. im going to put a new fuel pump in tommarow and i am pretty skeptical. i have checked all vacum lines to and from the carb and there good and if the fuel pump doesnt do it im going to freak out.. so have any of you guys experienced this before?? what the hell is it? i want to spank all those ricers friday night.. help me!!