|10-03-2012 11:54 PM|
Its a blackish blue if that makes sense. I dont understand why the fuel wouldnt ignite it has a brand new timing curve kit. Middle spring. Msd 8.5 super conductor wires. Super couil it just doesnt feel it has the power it should. It ran a 17.08 with 38s and 4:10 gears. That was when it was a turbo 400 though
Maybe timings to far advance? It doesnt give me a problem starting.
It gives me problems throttling up as well..
|10-03-2012 11:22 PM|
black smoke is usually too much fuel,,blue smoke-oil,,,white smoke--water
back firing where? exhaust? could be unburned fuel igniting in hot exhaust,same thing can happen if you go down hill fast in a lower gear,shut off engine a few seconds then turn it back on.carbed engines will still draw fuel and the hot exhaust can ignite it. If you have ignition/weak spark/old plugs,under extreme conditions you might replicate that backfire
|10-03-2012 10:52 PM|
Hey all. Well im having some issues.
Truck is an 86 chev crew shortbed stepside with 38s so my motors always under load
400 small block chev
.30 over -5 cc dish pistons 268h cam vortechs performer edeljunk 600 one of my problems is i ran my truck down the track and when in 3 rd gear after i let off the throttle (sm465) it backfires from both pipes but only one time....? 2nd is i noticed if i wot in 1 st not granny it blows smoke but i cannot tell if its unburnt fuel or oil burning off. Im thinking the 600 edel is not enough airflow? Running rich as its sucking more fuel then air? Any ideas?