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springs & ports
Hi,
I don't mean to make things complicated but does your 1300 have twin port heads? It may work better if that's the case.
Some new valve springs wouldn't hurt. You can change these with the engine still in the car.
If I were you I'd do a compression test first to check the engine is in good health. Your money may be better spent by lapping in the valves and freshening things up a bit.
Then there's 1600 pistons and barrels, a compression increase.....
I hope that helps.
CYA CT
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