Hello

Ok big change of plans I recently have brought a complete crashed
79 b310 sedan
With a15 and 4 speed gbox running and rego'd
Very rusty car tho running gear is fine

So now I will be converting my 81 mod b310 auto to a manual
And dropping in the a15 and 4speed

Just a few things I'm abit worried abit

Gbox is fine but gear stick is very sloppy (ezy fix)???

When buying the car the guy told me the a15 uses oil and has to be
Topped up every 3 months, I can see that the rocket cover is leaking oil

Also the a15 runs fine has a 32/36 down draft weber
Tho when revving the motor out (foot flat up hill / or revving out a gear)
It blows a heap of black smoke, nothing when idling?
The smoke only appears when the car is under load

Is this running rich?
Maybe the weber is not tuned / jetted right
Any ideas?