Originally Posted by
ZERACER
It may just have old gas from sitting so much and some varnish in the bowl and jets. Sounds like it was a garage queen if that is actual mileage. The first thing I would do is drain the tank and fill with fresh gas and then take it on a long drive. I would also run it in the dark and look for any arcing in the wiring. Beautiful car, I had a couple of MGAs and loved them. My 1961 even still had the hand crank for the engine. Yes, 1961!!!
My friend and I picked it up in Seymor Ind about 115 miles from me, It got some fresh gas and some interstate time right out of the gate. What oil did you use weight wise? The MGB forums are saying most use 20w50. The guy I got it from said the mechanic he took it to said to only use 5w30 dino oil only.