13s engine box

I have a 13s race engine removed from my class 2 grasser I bought to build but lost space so broke it.
Previous owner built it for 2014 season and did 2 or 3 meetings with it then stored away til last year when I bought it.
He said it had +40pistons and head work to grass rules,although I can’t prove this by way of receipts etc
The engine runs very well,,revs up lovely,has a weber carb which after that long would benefit from a setup no doubt.
Looks to be a standard inlet
the gearbox is an f10 w4.18 seems to get all gears.
Iv not raced it so can’t comment on it’s performance but it starts and runs and revs up fine.
Located Scarborough
£275

Price reduction bump