First can i say my car is a 1998 Alfa Spider ts
I cleaned it today, and also cleaned some dirt away from the engine bay.
On the evening i used the car only to find a "miss fire"
the idle has gone down (but only very slightly)
but when trying to pull away, it splutters and you can hear a slight tinny backfire!
when revs have gone up slightly this missfire clears, and it goes great?
when stationary and you rev it, it is lumpy but as revs go up it clears?
what have i done? and how can i cure it
Please help! newbie to alfa's
other than this recent problem the car is great