just put motor back together..
ported heads, 2.02 intake-1.57 exhaust valves, long tube headers, crane cam.
just put the motor back together after the timing chain snapped and screwed the valves up.
noticing a ticking sound coming from the motor.. could it be a exhaust leak from the headers?! new header gaskets.. what are the torque specs on the header bolts? also installed new lifters and push rods.
also tends to backfire on start up for a bit and also when downshifting. wouldn't do this before the rebuild but also just running open headers. new plugs and wires to, cheapies from autozone and didn't gap the plugs.
changed out the crank sensor also, do these cars require the gm tech II to relearn the ignition system on the crank sensor? could that cause a backfire??
also, where is the oil pressure sensor located? my car is showing no oil pressure what so ever but i'm pretty sure oil is being curculated.

